sync code with last improvements from OpenBSD
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cac1167ac2
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GPG key ID:
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19 changed files with 662 additions and 356 deletions
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@ -1,4 +1,4 @@
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.\" $OpenBSD: EVP_DigestInit.3,v 1.29 2023/08/27 15:33:08 schwarze Exp $
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.\" $OpenBSD: EVP_DigestInit.3,v 1.30 2023/09/07 14:22:11 schwarze Exp $
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.\" full merge up to: OpenSSL 7f572e95 Dec 2 13:57:04 2015 +0000
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.\" selective merge up to: OpenSSL 24a535ea Sep 22 13:14:20 2020 +0100
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.\"
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@ -70,7 +70,7 @@
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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.\" OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd $Mdocdate: August 27 2023 $
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.Dd $Mdocdate: September 7 2023 $
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.Dt EVP_DIGESTINIT 3
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.Os
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.Sh NAME
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@ -81,10 +81,6 @@
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.Nm EVP_MD_CTX_create ,
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.Nm EVP_MD_CTX_cleanup ,
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.Nm EVP_MD_CTX_destroy ,
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.Nm EVP_MD_CTX_ctrl ,
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.Nm EVP_MD_CTX_set_flags ,
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.Nm EVP_MD_CTX_clear_flags ,
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.Nm EVP_MD_CTX_test_flags ,
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.Nm EVP_DigestInit_ex ,
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.Nm EVP_DigestUpdate ,
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.Nm EVP_DigestFinal_ex ,
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@ -94,18 +90,7 @@
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.Nm EVP_DigestFinal ,
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.Nm EVP_MD_CTX_copy ,
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.Nm EVP_MAX_MD_SIZE ,
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.Nm EVP_MD_type ,
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.Nm EVP_MD_pkey_type ,
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.Nm EVP_MD_size ,
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.Nm EVP_MD_block_size ,
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.Nm EVP_MD_flags ,
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.Nm EVP_MD_CTX_md ,
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.Nm EVP_MD_CTX_size ,
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.Nm EVP_MD_CTX_block_size ,
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.Nm EVP_MD_CTX_type ,
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.Nm EVP_MD_CTX_md_data ,
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.Nm EVP_MD_CTX_pkey_ctx ,
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.Nm EVP_MD_CTX_set_pkey_ctx ,
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.Nm EVP_md_null ,
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.Nm EVP_sha224 ,
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.Nm EVP_sha256 ,
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@ -145,28 +130,6 @@
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.Fa "EVP_MD_CTX *ctx"
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.Fc
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.Ft int
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.Fo EVP_MD_CTX_ctrl
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.Fa "EVP_MD_CTX *ctx"
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.Fa "int command"
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.Fa "int p1"
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.Fa "void* p2"
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.Fc
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.Ft void
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.Fo EVP_MD_CTX_set_flags
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.Fa "EVP_MD_CTX *ctx"
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.Fa "int flags"
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.Fc
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.Ft void
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.Fo EVP_MD_CTX_clear_flags
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.Fa "EVP_MD_CTX *ctx"
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.Fa "int flags"
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.Fc
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.Ft int
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.Fo EVP_MD_CTX_test_flags
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.Fa "const EVP_MD_CTX *ctx"
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.Fa "int flags"
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.Fc
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.Ft int
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.Fo EVP_DigestInit_ex
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.Fa "EVP_MD_CTX *ctx"
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.Fa "const EVP_MD *type"
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@ -215,55 +178,10 @@
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.Fa "EVP_MD_CTX *in"
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.Fc
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.Fd #define EVP_MAX_MD_SIZE 64 /* SHA512 */
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.Ft int
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.Fo EVP_MD_type
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.Fa "const EVP_MD *md"
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.Fc
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.Ft int
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.Fo EVP_MD_pkey_type
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.Fa "const EVP_MD *md"
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.Fc
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.Ft int
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.Fo EVP_MD_size
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.Fa "const EVP_MD *md"
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.Fc
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.Ft int
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.Fo EVP_MD_block_size
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.Fa "const EVP_MD *md"
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.Fc
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.Ft unsigned long
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.Fo EVP_MD_flags
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.Fa "const EVP_MD *md"
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.Fc
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.Ft const EVP_MD *
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.Fo EVP_MD_CTX_md
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.Fa "const EVP_MD_CTX *ctx"
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.Fc
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.Ft int
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.Fo EVP_MD_CTX_size
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.Fa "const EVP_MD_CTX *ctx"
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.Fc
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.Ft int
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.Fo EVP_MD_CTX_block_size
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.Fa "const EVP_MD_CTX *ctx"
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.Fc
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.Ft int
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.Fo EVP_MD_CTX_type
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.Fa "const EVP_MD_CTX *ctx"
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.Fc
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.Ft void *
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.Fo EVP_MD_CTX_md_data
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.Fa "const EVP_MD_CTX *ctx"
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.Fc
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.Ft EVP_PKEY_CTX *
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.Fo EVP_MD_CTX_pkey_ctx
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.Fa "const EVP_MD_CTX *ctx"
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.Fc
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.Ft void
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.Fo EVP_MD_CTX_set_pkey_ctx
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.Fa "EVP_MD_CTX *ctx"
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.Fa "EVP_PKEY_CTX *pctx"
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.Fc
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.Ft const EVP_MD *
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.Fn EVP_md_null void
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.Ft const EVP_MD *
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@ -329,70 +247,6 @@ and
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.Fn EVP_MD_CTX_free ,
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respectively.
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.Pp
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.Fn EVP_MD_CTX_ctrl
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performs the digest-specific control
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.Fa command
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with the command-specific arguments
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.Fa p1
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and
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.Fa p2
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on
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.Fa ctx ,
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which needs to already be set up with
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.Fn EVP_DigestInit_ex
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before calling this function.
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Other restrictions may apply depending on the control
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.Fa command
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and digest implementation.
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.Pp
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If the
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.Fa command
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is
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.Dv EVP_MD_CTRL_MICALG ,
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.Fa p1
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is ignored and
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.Fa p2
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is an output argument of the type
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.Fa "char **p2" .
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A string specifying the digest Message Integrity Check algorithm
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is allocated and a pointer to this string is returned in
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.Pf * Fa p2 .
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It is the responsibility of the caller to
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.Xr free 3
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.Pf * Fa p2
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when it is no longer needed.
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This
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.Fa command
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is used by
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.Xr SMIME_write_ASN1 3
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when creating S/MIME multipart/signed messages as specified in RFC 3851.
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.Pp
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.Fn EVP_MD_CTX_set_flags
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sets and
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.Fn EVP_MD_CTX_clear_flags
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clears all the flag bits in
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.Fa ctx
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that are set in the
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.Fa flags
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argument.
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.Fn EVP_MD_CTX_test_flags
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tests which of the flag bits that are set in the
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.Fa flags
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argument are also set in
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.Fa ctx .
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Possible flag bits are:
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.Bl -tag -width Ds -offset 2n
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.It Dv EVP_MD_CTX_FLAG_NO_INIT
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Instruct
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.Fn EVP_DigestInit_ex
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and functions calling it not to initialise the internal data
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that is specific to the digest method and its implementation.
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.It Dv EVP_MD_CTX_FLAG_ONESHOT
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Instruct the digest to optimize for one update only, if possible.
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For digest algorithms built into the library, this flag usually
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has no effect.
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.El
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.Pp
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.Fn EVP_DigestInit_ex
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sets up the digest context
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.Fa ctx
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@ -505,111 +359,6 @@ except that it requires
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before a context that was already used can be passed as
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.Fa out .
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.Pp
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.Fn EVP_MD_size
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and
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.Fn EVP_MD_CTX_size
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return the size of the message digest when passed an
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.Vt EVP_MD
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or an
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.Vt EVP_MD_CTX
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structure, i.e. the size of the hash.
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.Pp
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.Fn EVP_MD_block_size
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and
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.Fn EVP_MD_CTX_block_size
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return the block size of the message digest when passed an
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.Vt EVP_MD
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or an
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.Vt EVP_MD_CTX
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structure.
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.Pp
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.Fn EVP_MD_type
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and
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.Fn EVP_MD_CTX_type
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return the NID of the OBJECT IDENTIFIER representing the message digest.
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For example
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.Fn EVP_MD_type EVP_sha512()
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returns
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.Dv NID_sha512 .
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These functions are normally used when setting ASN.1 OIDs.
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.Pp
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.Fn EVP_MD_CTX_md_data
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returns the digest method private data of
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.Fa ctx .
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The space was allocated and its size set with
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.Xr EVP_MD_meth_set_app_datasize 3 .
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.Pp
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.Fn EVP_MD_flags
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returns the
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.Fa md
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flags.
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These are different from the
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.Vt EVP_MD_CTX
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ones.
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See
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.Xr EVP_MD_meth_set_flags 3
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for more information.
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.Pp
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.Fn EVP_MD_pkey_type
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returns the NID of the public key signing algorithm associated with this
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digest.
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For example
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.Fn EVP_sha512
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is associated with RSA so this will return
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.Dv NID_sha512WithRSAEncryption .
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Since digests and signature algorithms are no longer linked, this
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function is only retained for compatibility reasons.
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.Pp
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.Fn EVP_MD_CTX_pkey_ctx
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returns the
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.Vt EVP_PKEY_CTX
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assigned to
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.Fa ctx .
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The returned pointer should not be freed by the caller.
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.Pp
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.Fn EVP_MD_CTX_set_pkey_ctx
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assigns
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.Fa pctx
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to
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.Fa ctx .
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This is normally used to provide a customized
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.Vt EVP_PKEY_CTX
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to
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.Xr EVP_DigestSignInit 3
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or
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.Xr EVP_DigestVerifyInit 3 .
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The caller retains ownership of the
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.Fa pctx
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passed to this function and is responsible for freeing it
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when it is no longer needed.
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.Pp
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If the
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.Fa ctx
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already contains a
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.Vt EVP_PKEY_CTX
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when this function is called, that old
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.Vt EVP_PKEY_CTX
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is freed if it was created internally, but if it was also installed with
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.Fn EVP_MD_CTX_set_pkey_ctx ,
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the pointer to the old
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.Vt EVP_PKEY_CTX
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is merely replaced by the new pointer and ownership of the old
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.Vt EVP_PKEY_CTX
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remains with the previous caller.
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.Pp
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Passing a
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.Dv NULL
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pointer for the
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.Fa pctx
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argument is also allowed.
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In that case, any
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.Vt EVP_PKEY_CTX
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already assigned to
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.Fa ctx
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is dissociated from it as described above, but no new
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.Vt EVP_PKEY_CTX
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is assigned.
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.Pp
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.Fn EVP_sha224 ,
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.Fn EVP_sha256 ,
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.Fn EVP_sha384 ,
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@ -642,10 +391,7 @@ return an
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structure when passed a digest name, a digest NID, or an ASN1_OBJECT
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structure respectively.
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.Pp
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.Fn EVP_MD_CTX_size ,
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.Fn EVP_MD_CTX_block_size ,
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.Fn EVP_MD_CTX_type ,
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.Fn EVP_get_digestbynid ,
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.Fn EVP_get_digestbynid
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and
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.Fn EVP_get_digestbyobj
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are implemented as macros.
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@ -693,7 +439,6 @@ and
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.Fn EVP_MD_CTX_cleanup
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always return 1.
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.Pp
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.Fn EVP_MD_CTX_ctrl ,
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.Fn EVP_DigestInit_ex ,
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.Fn EVP_DigestUpdate ,
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.Fn EVP_DigestFinal_ex ,
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@ -705,27 +450,6 @@ and
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.Fn EVP_MD_CTX_copy
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return 1 for success or 0 for failure.
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.Pp
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.Fn EVP_MD_CTX_test_flags
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returns the bitwise OR of the
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.Fa flags
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argument and the flags set in
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.Fa ctx .
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.Pp
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.Fn EVP_MD_type ,
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.Fn EVP_MD_pkey_type ,
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and
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.Fn EVP_MD_CTX_type
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return the NID of the corresponding OBJECT IDENTIFIER or
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.Dv NID_undef
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if none exists.
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.Pp
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.Fn EVP_MD_size ,
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.Fn EVP_MD_block_size ,
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.Fn EVP_MD_CTX_size ,
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and
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.Fn EVP_MD_CTX_block_size
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return the digest or block size in bytes.
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.Pp
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.Fn EVP_MD_CTX_md
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returns the
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.Vt EVP_MD
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@ -805,7 +529,9 @@ main(int argc, char *argv[])
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.Xr EVP_BytesToKey 3 ,
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.Xr EVP_DigestSignInit 3 ,
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.Xr EVP_DigestVerifyInit 3 ,
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.Xr EVP_MD_CTX_ctrl 3 ,
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.Xr EVP_MD_meth_new 3 ,
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.Xr EVP_MD_nid 3 ,
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.Xr EVP_PKEY_CTX_set_signature_md 3 ,
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.Xr EVP_PKEY_meth_set_signctx 3 ,
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.Xr EVP_sha1 3 ,
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@ -829,24 +555,14 @@ main(int argc, char *argv[])
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and
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.Dv EVP_MAX_MD_SIZE
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first appeared in SSLeay 0.5.1.
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.Fn EVP_MD_size
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first appeared in SSLeay 0.6.6.
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.Fn EVP_MD_CTX_size ,
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.Fn EVP_MD_CTX_type ,
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.Fn EVP_md_null ,
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.Fn EVP_md_null
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and
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.Fn EVP_get_digestbyname
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first appeared in SSLeay 0.8.0.
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.Fn EVP_MD_type ,
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.Fn EVP_MD_pkey_type ,
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.Fn EVP_get_digestbynid ,
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.Fn EVP_get_digestbynid
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and
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.Fn EVP_get_digestbyobj
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first appeared in SSLeay 0.8.1.
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.Fn EVP_MD_block_size ,
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.Fn EVP_MD_CTX_size ,
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.Fn EVP_MD_CTX_block_size ,
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and
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.Fn EVP_ripemd160
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first appeared in SSLeay 0.9.0.
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All these functions have been available since
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@ -864,9 +580,6 @@ first appeared in OpenSSL 0.9.5 and has been available since
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.Fn EVP_MD_CTX_create ,
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.Fn EVP_MD_CTX_cleanup ,
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.Fn EVP_MD_CTX_destroy ,
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.Fn EVP_MD_CTX_set_flags ,
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.Fn EVP_MD_CTX_clear_flags ,
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.Fn EVP_MD_CTX_test_flags ,
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.Fn EVP_DigestInit_ex ,
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.Fn EVP_DigestFinal_ex ,
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.Fn EVP_Digest ,
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|
|
@ -884,15 +597,6 @@ first appeared in OpenSSL 0.9.7h and 0.9.8a
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and have been available since
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.Ox 4.0 .
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.Pp
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.Fn EVP_MD_flags
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first appeared in OpenSSL 1.0.0
|
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and has been available since
|
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.Ox 4.9 .
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.Pp
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.Fn EVP_MD_CTX_ctrl
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first appeared in OpenSSL 1.1.0 and has been available since
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.Ox 5.7 .
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.Pp
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.Fn EVP_MD_CTX_new ,
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.Fn EVP_MD_CTX_reset ,
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and
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|
@ -900,15 +604,6 @@ and
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first appeared in OpenSSL 1.1.0 and have been available since
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.Ox 6.3 .
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.Pp
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.Fn EVP_MD_CTX_md_data
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and
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.Fn EVP_MD_CTX_pkey_ctx
|
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first appeared in OpenSSL 1.1.0 and
|
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.Fn EVP_MD_CTX_set_pkey_ctx
|
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in OpenSSL 1.1.1.
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These functions have been available since
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.Ox 7.1 .
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.Pp
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.Fn EVP_sha512_224
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and
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.Fn EVP_sha512_256
|
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|
|
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274
lib/libcrypto/man/EVP_MD_CTX_ctrl.3
Normal file
274
lib/libcrypto/man/EVP_MD_CTX_ctrl.3
Normal file
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@ -0,0 +1,274 @@
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.\" $OpenBSD: EVP_MD_CTX_ctrl.3,v 1.1 2023/09/07 14:22:11 schwarze Exp $
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.\" full merge up to: OpenSSL man3/EVP_DigestInit.pod
|
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.\" 24a535ea Sep 22 13:14:20 2020 +0100
|
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.\"
|
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.\" This file is a derived work.
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.\" The changes are covered by the following Copyright and license:
|
||||
.\"
|
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.\" Copyright (c) 2023 Ingo Schwarze <schwarze@openbsd.org>
|
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.\"
|
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.\" Permission to use, copy, modify, and distribute this software for any
|
||||
.\" purpose with or without fee is hereby granted, provided that the above
|
||||
.\" copyright notice and this permission notice appear in all copies.
|
||||
.\"
|
||||
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
.\"
|
||||
.\" The original file was written by Richard Levitte <levitte@openssl.org>,
|
||||
.\" Todd Short <tshort@akamai.com>, Paul Yang <yang.yang@baishancloud.com>,
|
||||
.\" and Antoine Salon <asalon@vmware.com>.
|
||||
.\" Copyright (c) 2015, 2016, 2018, 2019 The OpenSSL Project.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\"
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\"
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in
|
||||
.\" the documentation and/or other materials provided with the
|
||||
.\" distribution.
|
||||
.\"
|
||||
.\" 3. All advertising materials mentioning features or use of this
|
||||
.\" software must display the following acknowledgment:
|
||||
.\" "This product includes software developed by the OpenSSL Project
|
||||
.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
|
||||
.\"
|
||||
.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
||||
.\" endorse or promote products derived from this software without
|
||||
.\" prior written permission. For written permission, please contact
|
||||
.\" openssl-core@openssl.org.
|
||||
.\"
|
||||
.\" 5. Products derived from this software may not be called "OpenSSL"
|
||||
.\" nor may "OpenSSL" appear in their names without prior written
|
||||
.\" permission of the OpenSSL Project.
|
||||
.\"
|
||||
.\" 6. Redistributions of any form whatsoever must retain the following
|
||||
.\" acknowledgment:
|
||||
.\" "This product includes software developed by the OpenSSL Project
|
||||
.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)"
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
||||
.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
||||
.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||||
.\" OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.Dd $Mdocdate: September 7 2023 $
|
||||
.Dt EVP_MD_CTX_CTRL 3
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm EVP_MD_CTX_ctrl ,
|
||||
.Nm EVP_MD_CTX_set_flags ,
|
||||
.Nm EVP_MD_CTX_clear_flags ,
|
||||
.Nm EVP_MD_CTX_test_flags ,
|
||||
.Nm EVP_MD_CTX_pkey_ctx ,
|
||||
.Nm EVP_MD_CTX_set_pkey_ctx ,
|
||||
.Nm EVP_MD_CTX_md_data
|
||||
.Nd configure EVP message digest contexts
|
||||
.Sh SYNOPSIS
|
||||
.In openssl/evp.h
|
||||
.Ft int
|
||||
.Fo EVP_MD_CTX_ctrl
|
||||
.Fa "EVP_MD_CTX *ctx"
|
||||
.Fa "int command"
|
||||
.Fa "int p1"
|
||||
.Fa "void* p2"
|
||||
.Fc
|
||||
.Ft void
|
||||
.Fo EVP_MD_CTX_set_flags
|
||||
.Fa "EVP_MD_CTX *ctx"
|
||||
.Fa "int flags"
|
||||
.Fc
|
||||
.Ft void
|
||||
.Fo EVP_MD_CTX_clear_flags
|
||||
.Fa "EVP_MD_CTX *ctx"
|
||||
.Fa "int flags"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_CTX_test_flags
|
||||
.Fa "const EVP_MD_CTX *ctx"
|
||||
.Fa "int flags"
|
||||
.Fc
|
||||
.Ft EVP_PKEY_CTX *
|
||||
.Fo EVP_MD_CTX_pkey_ctx
|
||||
.Fa "const EVP_MD_CTX *ctx"
|
||||
.Fc
|
||||
.Ft void
|
||||
.Fo EVP_MD_CTX_set_pkey_ctx
|
||||
.Fa "EVP_MD_CTX *ctx"
|
||||
.Fa "EVP_PKEY_CTX *pctx"
|
||||
.Fc
|
||||
.Ft void *
|
||||
.Fo EVP_MD_CTX_md_data
|
||||
.Fa "const EVP_MD_CTX *ctx"
|
||||
.Fc
|
||||
.Sh DESCRIPTION
|
||||
.Fn EVP_MD_CTX_ctrl
|
||||
performs the digest-specific control
|
||||
.Fa command
|
||||
with the command-specific arguments
|
||||
.Fa p1
|
||||
and
|
||||
.Fa p2
|
||||
on
|
||||
.Fa ctx ,
|
||||
which needs to already be set up with
|
||||
.Xr EVP_DigestInit_ex 3
|
||||
before calling this function.
|
||||
Other restrictions may apply depending on the control
|
||||
.Fa command
|
||||
and digest implementation.
|
||||
.Pp
|
||||
If the
|
||||
.Fa command
|
||||
is
|
||||
.Dv EVP_MD_CTRL_MICALG ,
|
||||
.Fa p1
|
||||
is ignored and
|
||||
.Fa p2
|
||||
is an output argument of the type
|
||||
.Fa "char **p2" .
|
||||
A string specifying the digest Message Integrity Check algorithm
|
||||
is allocated and a pointer to this string is returned in
|
||||
.Pf * Fa p2 .
|
||||
It is the responsibility of the caller to
|
||||
.Xr free 3
|
||||
.Pf * Fa p2
|
||||
when it is no longer needed.
|
||||
This
|
||||
.Fa command
|
||||
is used by
|
||||
.Xr SMIME_write_ASN1 3
|
||||
when creating S/MIME multipart/signed messages as specified in RFC 3851.
|
||||
.Pp
|
||||
.Fn EVP_MD_CTX_set_flags
|
||||
sets and
|
||||
.Fn EVP_MD_CTX_clear_flags
|
||||
clears all the flag bits in
|
||||
.Fa ctx
|
||||
that are set in the
|
||||
.Fa flags
|
||||
argument.
|
||||
.Fn EVP_MD_CTX_test_flags
|
||||
tests which of the flag bits that are set in the
|
||||
.Fa flags
|
||||
argument are also set in
|
||||
.Fa ctx .
|
||||
Possible flag bits are:
|
||||
.Bl -tag -width Ds -offset 2n
|
||||
.It Dv EVP_MD_CTX_FLAG_NO_INIT
|
||||
Instruct
|
||||
.Xr EVP_DigestInit_ex 3
|
||||
and functions calling it not to initialise the internal data
|
||||
that is specific to the digest method and its implementation.
|
||||
.It Dv EVP_MD_CTX_FLAG_ONESHOT
|
||||
Instruct the digest to optimize for one update only, if possible.
|
||||
For digest algorithms built into the library, this flag usually
|
||||
has no effect.
|
||||
.El
|
||||
.Pp
|
||||
.Fn EVP_MD_CTX_pkey_ctx
|
||||
returns the
|
||||
.Vt EVP_PKEY_CTX
|
||||
assigned to
|
||||
.Fa ctx .
|
||||
The returned pointer should not be freed by the caller.
|
||||
.Pp
|
||||
.Fn EVP_MD_CTX_set_pkey_ctx
|
||||
assigns
|
||||
.Fa pctx
|
||||
to
|
||||
.Fa ctx .
|
||||
This is normally used to provide a customized
|
||||
.Vt EVP_PKEY_CTX
|
||||
to
|
||||
.Xr EVP_DigestSignInit 3
|
||||
or
|
||||
.Xr EVP_DigestVerifyInit 3 .
|
||||
The caller retains ownership of the
|
||||
.Fa pctx
|
||||
passed to this function and is responsible for freeing it
|
||||
when it is no longer needed.
|
||||
.Pp
|
||||
If the
|
||||
.Fa ctx
|
||||
already contains a
|
||||
.Vt EVP_PKEY_CTX
|
||||
when this function is called, that old
|
||||
.Vt EVP_PKEY_CTX
|
||||
is freed if it was created internally, but if it was also installed with
|
||||
.Fn EVP_MD_CTX_set_pkey_ctx ,
|
||||
the pointer to the old
|
||||
.Vt EVP_PKEY_CTX
|
||||
is merely replaced by the new pointer and ownership of the old
|
||||
.Vt EVP_PKEY_CTX
|
||||
remains with the previous caller.
|
||||
.Pp
|
||||
Passing a
|
||||
.Dv NULL
|
||||
pointer for the
|
||||
.Fa pctx
|
||||
argument is also allowed.
|
||||
In that case, any
|
||||
.Vt EVP_PKEY_CTX
|
||||
already assigned to
|
||||
.Fa ctx
|
||||
is dissociated from it as described above, but no new
|
||||
.Vt EVP_PKEY_CTX
|
||||
is assigned.
|
||||
.Pp
|
||||
.Fn EVP_MD_CTX_md_data
|
||||
returns the digest method private data of
|
||||
.Fa ctx .
|
||||
The space was allocated and its size set with
|
||||
.Xr EVP_MD_meth_set_app_datasize 3 .
|
||||
.Sh RETURN VALUES
|
||||
.Fn EVP_MD_CTX_ctrl
|
||||
returns 1 for success or 0 for failure.
|
||||
.Pp
|
||||
.Fn EVP_MD_CTX_test_flags
|
||||
returns the bitwise OR of the
|
||||
.Fa flags
|
||||
argument and the flags set in
|
||||
.Fa ctx .
|
||||
.Sh SEE ALSO
|
||||
.Xr evp 3 ,
|
||||
.Xr EVP_DigestInit 3 ,
|
||||
.Xr EVP_MD_meth_new 3 ,
|
||||
.Xr EVP_MD_nid 3
|
||||
.Sh HISTORY
|
||||
.Fn EVP_MD_CTX_set_flags ,
|
||||
.Fn EVP_MD_CTX_clear_flags ,
|
||||
and
|
||||
.Fn EVP_MD_CTX_test_flags ,
|
||||
first appeared in OpenSSL 0.9.7 and have been available since
|
||||
.Ox 3.2 .
|
||||
.Pp
|
||||
.Fn EVP_MD_CTX_ctrl
|
||||
first appeared in OpenSSL 1.1.0 and has been available since
|
||||
.Ox 5.7 .
|
||||
.Pp
|
||||
.Fn EVP_MD_CTX_pkey_ctx
|
||||
and
|
||||
.Fn EVP_MD_CTX_md_data
|
||||
first appeared in OpenSSL 1.1.0 and
|
||||
.Fn EVP_MD_CTX_set_pkey_ctx
|
||||
in OpenSSL 1.1.1.
|
||||
These functions have been available since
|
||||
.Ox 7.1 .
|
||||
265
lib/libcrypto/man/EVP_MD_nid.3
Normal file
265
lib/libcrypto/man/EVP_MD_nid.3
Normal file
|
|
@ -0,0 +1,265 @@
|
|||
.\" $OpenBSD: EVP_MD_nid.3,v 1.3 2023/09/07 16:32:41 schwarze Exp $
|
||||
.\" full merge up to: OpenSSL man3/EVP_DigestInit.pod
|
||||
.\" 24a535ea Sep 22 13:14:20 2020 +0100
|
||||
.\"
|
||||
.\" This file is a derived work.
|
||||
.\" The changes are covered by the following Copyright and license:
|
||||
.\"
|
||||
.\" Copyright (c) 2023 Ingo Schwarze <schwarze@openbsd.org>
|
||||
.\"
|
||||
.\" Permission to use, copy, modify, and distribute this software for any
|
||||
.\" purpose with or without fee is hereby granted, provided that the above
|
||||
.\" copyright notice and this permission notice appear in all copies.
|
||||
.\"
|
||||
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
.\"
|
||||
.\" The original file was written by Dr. Stephen Henson <steve@openssl.org>
|
||||
.\" and Antoine Salon <asalon@vmware.com>.
|
||||
.\" Copyright (c) 2000, 2012, 2019 The OpenSSL Project.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\"
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\"
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in
|
||||
.\" the documentation and/or other materials provided with the
|
||||
.\" distribution.
|
||||
.\"
|
||||
.\" 3. All advertising materials mentioning features or use of this
|
||||
.\" software must display the following acknowledgment:
|
||||
.\" "This product includes software developed by the OpenSSL Project
|
||||
.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
|
||||
.\"
|
||||
.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
||||
.\" endorse or promote products derived from this software without
|
||||
.\" prior written permission. For written permission, please contact
|
||||
.\" openssl-core@openssl.org.
|
||||
.\"
|
||||
.\" 5. Products derived from this software may not be called "OpenSSL"
|
||||
.\" nor may "OpenSSL" appear in their names without prior written
|
||||
.\" permission of the OpenSSL Project.
|
||||
.\"
|
||||
.\" 6. Redistributions of any form whatsoever must retain the following
|
||||
.\" acknowledgment:
|
||||
.\" "This product includes software developed by the OpenSSL Project
|
||||
.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)"
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
||||
.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
||||
.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||||
.\" OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.Dd $Mdocdate: September 7 2023 $
|
||||
.Dt EVP_MD_NID 3
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm EVP_MD_nid ,
|
||||
.Nm EVP_MD_type ,
|
||||
.Nm EVP_MD_CTX_type ,
|
||||
.Nm EVP_MD_name ,
|
||||
.Nm EVP_MD_size ,
|
||||
.Nm EVP_MD_CTX_size ,
|
||||
.Nm EVP_MD_block_size ,
|
||||
.Nm EVP_MD_CTX_block_size ,
|
||||
.Nm EVP_MD_flags ,
|
||||
.Nm EVP_MD_pkey_type
|
||||
.Nd inspect EVP_MD objects
|
||||
.Sh SYNOPSIS
|
||||
.In openssl/evp.h
|
||||
.Ft int
|
||||
.Fo EVP_MD_nid
|
||||
.Fa "const EVP_MD *md"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_type
|
||||
.Fa "const EVP_MD *md"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_CTX_type
|
||||
.Fa "const EVP_MD_CTX *ctx"
|
||||
.Fc
|
||||
.Ft const char *
|
||||
.Fo EVP_MD_name
|
||||
.Fa "const EVP_MD *md"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_size
|
||||
.Fa "const EVP_MD *md"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_CTX_size
|
||||
.Fa "const EVP_MD_CTX *ctx"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_block_size
|
||||
.Fa "const EVP_MD *md"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_CTX_block_size
|
||||
.Fa "const EVP_MD_CTX *ctx"
|
||||
.Fc
|
||||
.Ft unsigned long
|
||||
.Fo EVP_MD_flags
|
||||
.Fa "const EVP_MD *md"
|
||||
.Fc
|
||||
.Ft int
|
||||
.Fo EVP_MD_pkey_type
|
||||
.Fa "const EVP_MD *md"
|
||||
.Fc
|
||||
.Sh DESCRIPTION
|
||||
.Fn EVP_MD_nid
|
||||
and
|
||||
.Fn EVP_MD_type
|
||||
are identical and return the numerical identifier (NID) of
|
||||
.Fa md .
|
||||
The NID is an internal value which may or may not have
|
||||
a corresponding ASN.1 OBJECT IDENTIFIER; see
|
||||
.Xr OBJ_nid2obj 3
|
||||
for details.
|
||||
For example ,
|
||||
.Fn EVP_MD_type EVP_sha512()
|
||||
returns
|
||||
.Dv NID_sha512 .
|
||||
.Fn EVP_MD_CTX_type
|
||||
returns the NID of the message digest algorithm that
|
||||
.Fa ctx
|
||||
is configured to use.
|
||||
These functions are normally used when setting ASN.1 OIDs.
|
||||
.Pp
|
||||
.Fn EVP_MD_name
|
||||
converts the NID of
|
||||
.Fa md
|
||||
to its short name with
|
||||
.Xr OBJ_nid2sn 3 .
|
||||
.Pp
|
||||
.Fn EVP_MD_size
|
||||
returns the size in bytes of the message digests (hashes) produced by
|
||||
.Fa md .
|
||||
.Fn EVP_MD_CTX_size
|
||||
return the size of the hashes produced by the message digest algorithm that
|
||||
.Fa ctx
|
||||
is configured to use.
|
||||
.Pp
|
||||
.Fn EVP_MD_block_size
|
||||
returns the block size in bytes of
|
||||
.Fa md .
|
||||
.Fn EVP_MD_CTX_block_size
|
||||
returns the block size of the message digest algorithm that
|
||||
.Fa ctx
|
||||
is configured to use.
|
||||
.Pp
|
||||
.Fn EVP_MD_flags
|
||||
returns the message digest flags used by
|
||||
.Fa md .
|
||||
The meaning of the flags is described in the
|
||||
.Xr EVP_MD_meth_set_flags 3
|
||||
manual page.
|
||||
Be careful to not confuse these flags with the unrelated
|
||||
message digest context flags that can be inspected with
|
||||
.Xr EVP_MD_CTX_test_flags 3 .
|
||||
.Pp
|
||||
.Fn EVP_MD_pkey_type
|
||||
returns the NID of the public key signing algorithm associated with this
|
||||
digest.
|
||||
For example,
|
||||
.Xr EVP_sha512 3
|
||||
is associated with RSA, so this returns
|
||||
.Dv NID_sha512WithRSAEncryption .
|
||||
Since digests and signature algorithms are no longer linked, this
|
||||
function is only retained for compatibility reasons.
|
||||
.Pp
|
||||
.Fn EVP_MD_nid ,
|
||||
.Fn EVP_MD_CTX_type ,
|
||||
.Fn EVP_MD_name ,
|
||||
.Fn EVP_MD_CTX_size ,
|
||||
and
|
||||
.Fn EVP_MD_CTX_block_size
|
||||
are implemented as macros.
|
||||
.Sh RETURN VALUES
|
||||
.Fn EVP_MD_nid ,
|
||||
.Fn EVP_MD_type ,
|
||||
.Fn EVP_MD_CTX_type ,
|
||||
and
|
||||
.Fn EVP_MD_pkey_type
|
||||
return the NID of the corresponding OBJECT IDENTIFIER or
|
||||
.Dv NID_undef
|
||||
if none exists.
|
||||
.Pp
|
||||
.Fn EVP_MD_name
|
||||
returns a pointer to a string
|
||||
that is owned by an internal library object or
|
||||
.Dv NULL
|
||||
if the NID is neither built into the library nor added to the global
|
||||
object table by one of the functions documented in the manual page
|
||||
.Xr OBJ_create 3 ,
|
||||
or if the object does not contain a short name.
|
||||
.Pp
|
||||
.Fn EVP_MD_size ,
|
||||
.Fn EVP_MD_CTX_size ,
|
||||
.Fn EVP_MD_block_size ,
|
||||
and
|
||||
.Fn EVP_MD_CTX_block_size
|
||||
return the digest or block size in bytes.
|
||||
.Sh SEE ALSO
|
||||
.Xr evp 3 ,
|
||||
.Xr EVP_DigestInit 3 ,
|
||||
.Xr EVP_MD_CTX_ctrl 3 ,
|
||||
.Xr OBJ_nid2obj 3
|
||||
.Sh HISTORY
|
||||
.Fn EVP_MD_size
|
||||
first appeared in SSLeay 0.6.6,
|
||||
.Fn EVP_MD_CTX_size
|
||||
and
|
||||
.Fn EVP_MD_CTX_type
|
||||
in SSLeay 0.8.0,
|
||||
.Fn EVP_MD_type
|
||||
and
|
||||
.Fn EVP_MD_pkey_type
|
||||
in SSLeay 0.8.1, and
|
||||
.Fn EVP_MD_block_size
|
||||
and
|
||||
.Fn EVP_MD_CTX_block_size
|
||||
in SSLeay 0.9.0.
|
||||
All these functions have been available since
|
||||
.Ox 2.4 .
|
||||
.Pp
|
||||
.Fn EVP_MD_nid
|
||||
and
|
||||
.Fn EVP_MD_name
|
||||
first appeared in OpenSSL 0.9.7 and have been available since
|
||||
.Ox 3.2 .
|
||||
.Pp
|
||||
.Fn EVP_MD_flags
|
||||
first appeared in OpenSSL 1.0.0
|
||||
and has been available since
|
||||
.Ox 4.9 .
|
||||
.Sh CAVEATS
|
||||
The behaviour of the functions taking an
|
||||
.Vt EVP_MD_CTX
|
||||
argument is undefined if they are called on a
|
||||
.Fa ctx
|
||||
that has no message digest configured yet,
|
||||
for example one freshly returned from
|
||||
.Xr EVP_MD_CTX_new 3 .
|
||||
In that case, the program may for example be terminated by a
|
||||
.Dv NULL
|
||||
pointer access.
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
# $OpenBSD: Makefile,v 1.266 2023/08/31 17:27:41 schwarze Exp $
|
||||
# $OpenBSD: Makefile,v 1.267 2023/09/07 14:22:11 schwarze Exp $
|
||||
|
||||
.include <bsd.own.mk>
|
||||
|
||||
|
|
@ -175,7 +175,9 @@ MAN= \
|
|||
EVP_DigestVerifyInit.3 \
|
||||
EVP_EncodeInit.3 \
|
||||
EVP_EncryptInit.3 \
|
||||
EVP_MD_CTX_ctrl.3 \
|
||||
EVP_MD_meth_new.3 \
|
||||
EVP_MD_nid.3 \
|
||||
EVP_OpenInit.3 \
|
||||
EVP_PKCS82PKEY.3 \
|
||||
EVP_PKEY_CTX_ctrl.3 \
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
.\" $OpenBSD: evp.3,v 1.22 2023/08/31 17:27:41 schwarze Exp $
|
||||
.\" $OpenBSD: evp.3,v 1.23 2023/09/07 14:22:11 schwarze Exp $
|
||||
.\" full merge up to: OpenSSL man7/evp 24a535ea Sep 22 13:14:20 2020 +0100
|
||||
.\"
|
||||
.\" This file was written by Ulf Moeller <ulf@openssl.org>,
|
||||
|
|
@ -51,7 +51,7 @@
|
|||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||||
.\" OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.Dd $Mdocdate: August 31 2023 $
|
||||
.Dd $Mdocdate: September 7 2023 $
|
||||
.Dt EVP 3
|
||||
.Os
|
||||
.Sh NAME
|
||||
|
|
@ -211,7 +211,9 @@ operations are more efficient using the high-level interfaces.
|
|||
.Xr EVP_DigestVerifyInit 3 ,
|
||||
.Xr EVP_EncodeInit 3 ,
|
||||
.Xr EVP_EncryptInit 3 ,
|
||||
.Xr EVP_MD_CTX_ctrl 3 ,
|
||||
.Xr EVP_MD_meth_new 3 ,
|
||||
.Xr EVP_MD_nid 3 ,
|
||||
.Xr EVP_OpenInit 3 ,
|
||||
.Xr EVP_PKCS82PKEY 3 ,
|
||||
.Xr EVP_PKEY_add1_attr 3 ,
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue