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Title "EVP_SIGNATURE-HMAC 7ossl" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
EVP_SIGNATURE-HMAC, EVP_SIGNATURE-Siphash, EVP_SIGNATURE-Poly1305, EVP_SIGNATURE-CMAC \- The legacy EVP_PKEY MAC signature implementations Header "DESCRIPTION" The algorithms described here have legacy support for creating MACs using \fBEVP_DigestSignInit\|(3) and related functions. This is not the preferred way of creating MACs. Instead you should use the newer EVP_MAC_init\|(3) functions. This mechanism is provided for backwards compatibility with older versions of OpenSSL.

The same signature parameters can be set using EVP_PKEY_CTX_set_params() as can be set via EVP_MAC_CTX_set_params() for the underlying \s-1EVP_MAC.\s0 See \s-1EVP_MAC-HMAC\s0\|(7), EVP_MAC-Siphash\|(7), EVP_MAC-Poly1305\|(7) and \s-1EVP_MAC-CMAC\s0\|(7) for details.

.Vb 3 See L<EVP_PKEY-HMAC(7)>, L<EVP_PKEY-Siphash(7)>, L<EVP_PKEY-Poly1305(7)> or L<EVP_PKEY-CMAC(7)> for details about parameters that are supported during the creation of an EVP_PKEY. .Ve

Header "SEE ALSO" \fBEVP_MAC_init\|(3), \fBEVP_DigestSignInit\|(3), \s-1EVP_PKEY-HMAC\s0\|(7), \fBEVP_PKEY-Siphash\|(7), \fBEVP_PKEY-Poly1305\|(7), \s-1EVP_PKEY-CMAC\s0\|(7), \s-1EVP_MAC-HMAC\s0\|(7), \fBEVP_MAC-Siphash\|(7), \fBEVP_MAC-Poly1305\|(7), \s-1EVP_MAC-CMAC\s0\|(7), \fBprovider-signature\|(7), Header "COPYRIGHT" Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.

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>.