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.\" ========================================================================
.\"
.IX Title "EVP_MD-MD5-SHA1 7SSL"
.TH EVP_MD-MD5-SHA1 7SSL "2023-10-23" "3.0.11" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
EVP_MD\-MD5\-SHA1 \- The MD5\-SHA1 EVP_MD implementation
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Support for computing \s-1MD5\-SHA1\s0 digests through the \fB\s-1EVP_MD\s0\fR \s-1API.\s0
.PP
\&\s-1MD5\-SHA1\s0 is a rather special digest that's used with SSLv3.
.SS "Identity"
.IX Subsection "Identity"
This implementation is only available with the default provider, and is
identified with the name \*(L"\s-1MD5\-SHA1\*(R".\s0
.SS "Gettable Parameters"
.IX Subsection "Gettable Parameters"
This implementation supports the common gettable parameters described
in \fBEVP_MD\-common\fR\|(7).
.SS "Settable Context Parameters"
.IX Subsection "Settable Context Parameters"
This implementation supports the following \s-1\fBOSSL_PARAM\s0\fR\|(3) entries,
settable for an \fB\s-1EVP_MD_CTX\s0\fR with \fBEVP_MD_CTX_set_params\fR\|(3):
.ie n .IP """ssl3\-ms"" (\fB\s-1OSSL_DIGEST_PARAM_SSL3_MS\s0\fR) <octet string>" 4
.el .IP "``ssl3\-ms'' (\fB\s-1OSSL_DIGEST_PARAM_SSL3_MS\s0\fR) <octet string>" 4
.IX Item "ssl3-ms (OSSL_DIGEST_PARAM_SSL3_MS) <octet string>"
This parameter is set by libssl in order to calculate a signature hash for an
SSLv3 CertificateVerify message as per \s-1RFC6101.\s0
It is only set after all handshake messages have already been digested via
\&\fBOP_digest_update()\fR calls.
The parameter provides the master secret value to be added to the digest.
The digest implementation should calculate the complete digest as per \s-1RFC6101\s0
section 5.6.8.
The next call after setting this parameter should be \fBOP_digest_final()\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBEVP_MD_CTX_set_params\fR\|(3), \fBprovider\-digest\fR\|(7), \fBOSSL_PROVIDER\-default\fR\|(7)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.