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Title "EVP_SIGNATURE-RSA 7" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
EVP_SIGNATURE-RSA \- The EVP_PKEY RSA signature implementation Header "DESCRIPTION" Support for computing \s-1RSA\s0 signatures. See \s-1EVP_PKEY-RSA\s0\|(7) for information related to \s-1RSA\s0 keys. Subsection "Signature Parameters" The following signature parameters can be set using EVP_PKEY_CTX_set_params(). This may be called after EVP_PKEY_sign_init() or EVP_PKEY_verify_init(), and before calling EVP_PKEY_sign() or EVP_PKEY_verify(). Item "digest (OSSL_SIGNATURE_PARAM_DIGEST) <UTF8 string>"

0 Item "properties (OSSL_SIGNATURE_PARAM_PROPERTIES) <UTF8 string>"

These common parameters are described in provider-signature\|(7). Item "pad-mode (OSSL_SIGNATURE_PARAM_PAD_MODE) <UTF8 string>" The type of padding to be used. Its value can be one of the following:

Item "mgf1-digest (OSSL_SIGNATURE_PARAM_MGF1_DIGEST) <UTF8 string>"

The digest algorithm name to use for the maskGenAlgorithm used by \*(L"pss\*(R" mode. Item "mgf1-properties (OSSL_SIGNATURE_PARAM_MGF1_PROPERTIES) <UTF8 string>" Sets the name of the property query associated with the \*(L"mgf1-digest\*(R" algorithm. \s-1NULL\s0 is used if this optional value is not set. Item "saltlen (OSSL_SIGNATURE_PARAM_PSS_SALTLEN) <integer> or <UTF8 string>" The \*(L"pss\*(R" mode minimum salt length. The value can either be an integer, a string value representing a number or one of the following string values:

The following signature parameters can be retrieved using \fBEVP_PKEY_CTX_get_params(). Item "algorithm-id (OSSL_SIGNATURE_PARAM_ALGORITHM_ID) <octet string>" This common parameter is described in provider-signature\|(7). Item "digest (OSSL_SIGNATURE_PARAM_DIGEST) <UTF8 string>"

0 Item "pad-mode (OSSL_SIGNATURE_PARAM_PAD_MODE) <UTF8 string>" Item "mgf1-digest (OSSL_SIGNATURE_PARAM_MGF1_DIGEST) <UTF8 string>" Item "saltlen (OSSL_SIGNATURE_PARAM_PSS_SALTLEN) <integer> or <UTF8 string>"

These parameters are as described above.

Header "SEE ALSO" \fBEVP_PKEY_CTX_set_params\|(3), \fBEVP_PKEY_sign\|(3), \fBEVP_PKEY_verify\|(3), \fBprovider-signature\|(7), Header "COPYRIGHT" Copyright 2020-2022 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>.