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+.\" ========================================================================
+.\"
+.IX Title "EVP_MD-SHA1 7ossl"
+.TH EVP_MD-SHA1 7ossl "2023-09-19" "3.0.11" "OpenSSL"
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH "NAME"
+EVP_MD\-SHA1 \- The SHA1 EVP_MD implementation
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+Support for computing \s-1SHA1\s0 digests through the \fB\s-1EVP_MD\s0\fR \s-1API.\s0
+.SS "Identities"
+.IX Subsection "Identities"
+This implementation is available with the \s-1FIPS\s0 provider as well as the
+default provider, and is identified with the names \*(L"\s-1SHA1\*(R"\s0 and \*(L"\s-1SHA\-1\*(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),
+\&\s-1\fBOSSL_PROVIDER\-FIPS\s0\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>.