$NetBSD: EVP_MAC-Poly1305.7,v 1.5 2024/09/08 13:08:22 christos Exp $
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Title "EVP_MAC-POLY1305 7"
way too many mistakes in technical documents.
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Title "EVP_MAC-POLY1305 7"
EVP_MAC-POLY1305 7 2024-09-03 3.0.15 OpenSSL
For nroff, turn off justification. Always turn off hyphenation; it makesway too many mistakes in technical documents.
NAME
EVP_MAC-Poly1305 - The Poly1305 EVP_MAC implementation
DESCRIPTION
Header "DESCRIPTION" Support for computing Poly1305 MACs through the EVP_MAC API.
Identity
Subsection "Identity" This implementation is identified with this name and properties, to be
used with EVP_MAC_fetch():
"""POLY1305"", ""provider=default""" 4
Item """POLY1305"", ""provider=default""" "Supported parameters"
Subsection "Supported parameters" The general description of these parameters can be found in
"PARAMETERS" in EVP_MAC\|(3).
The following parameter can be set with EVP_MAC_CTX_set_params():
"""key"" (OSSL_MAC_PARAM_KEY) <octet string>" 4
Item """key"" (OSSL_MAC_PARAM_KEY) <octet string>" Sets the MAC key.
Setting this parameter is identical to passing a key to EVP_MAC_init\|(3).
The following parameters can be retrieved with \fBEVP_MAC_CTX_get_params():
"""size"" (OSSL_MAC_PARAM_SIZE) <unsigned integer>" 4
Item """size"" (OSSL_MAC_PARAM_SIZE) <unsigned integer>" Gets the MAC size.
The "size" parameter can also be retrieved with with EVP_MAC_CTX_get_mac_size(). The length of the "size" parameter should not exceed that of an unsigned int.
NOTES
Header "NOTES" The OpenSSL implementation of the Poly 1305 MAC corresponds to RFC 7539.
It is critical to never reuse the key. The security implication noted in RFC 8439 applies equally to the OpenSSL implementation.
"SEE ALSO"
Header "SEE ALSO" \fBEVP_MAC_CTX_get_params\|(3), EVP_MAC_CTX_set_params\|(3),
"PARAMETERS" in EVP_MAC\|(3), OSSL_PARAM\|(3)
COPYRIGHT
Header "COPYRIGHT" Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.