EVP_SIGNATURE-RSA - Online Linux Manual PageSection : 7SSL
Updated : 2022-08-14
Source : 3.0.5
Note : OpenSSL
NAMEEVP_SIGNATURE−RSA ​− The EVP_PKEY RSA signature implementation
DESCRIPTIONSupport for computing RSA signatures. See EVP_PKEY−RSA (7) for information related to RSA keys.
Signature ParametersThe 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(). ``digest'' (OSSL_SIGNATURE_PARAM_DIGEST) <UTF8 string> ``properties'' (OSSL_SIGNATURE_PARAM_PROPERTIES) <UTF8 string> These common parameters are described in provider−signature (7). ``pad-mode'' (OSSL_SIGNATURE_PARAM_PAD_MODE) <UTF8 string> The type of padding to be used. Its value can be one of the following: ``none'' (OSSL_PKEY_RSA_PAD_MODE_NONE) ``pkcs1'' (OSSL_PKEY_RSA_PAD_MODE_PKCSV15) ``x931'' (OSSL_PKEY_RSA_PAD_MODE_X931) ``pss'' (OSSL_PKEY_RSA_PAD_MODE_PSS) ``mgf1−digest'' (OSSL_SIGNATURE_PARAM_MGF1_DIGEST) <UTF8 string> The digest algorithm name to use for the maskGenAlgorithm used by ‟pss” mode. ``mgf1−properties'' (OSSL_SIGNATURE_PARAM_MGF1_PROPERTIES) <UTF8 string> Sets the name of the property query associated with the ‟mgf1−digest” algorithm. ​NULL is used if this optional value is not set. ``saltlen'' (OSSL_SIGNATURE_PARAM_PSS_SALTLEN) <integer> or <UTF8 string> The ‟pss” mode minimum salt length. The value can either be an integer, a string value representing a number or one of the following string values: ``digest'' (OSSL_PKEY_RSA_PSS_SALT_LEN_DIGEST) Use the same length as the digest size. ``max'' (OSSL_PKEY_RSA_PSS_SALT_LEN_MAX) Use the maximum salt length. ``auto'' (OSSL_PKEY_RSA_PSS_SALT_LEN_AUTO) Auto detect the salt length. The following signature parameters can be retrieved using ​EVP_PKEY_CTX_get_params(). ``algorithm-id'' (OSSL_SIGNATURE_PARAM_ALGORITHM_ID) <octet string> This common parameter is described in provider−signature (7). ``digest'' (OSSL_SIGNATURE_PARAM_DIGEST) <UTF8 string> ``pad-mode'' (OSSL_SIGNATURE_PARAM_PAD_MODE) <UTF8 string> ``mgf1−digest'' (OSSL_SIGNATURE_PARAM_MGF1_DIGEST) <UTF8 string> ``saltlen'' (OSSL_SIGNATURE_PARAM_PSS_SALTLEN) <integer> or <UTF8 string> These parameters are as described above.
SEE ALSO​EVP_PKEY_CTX_set_params (3), ​EVP_PKEY_sign (3), ​EVP_PKEY_verify (3), ​provider−signature (7),
COPYRIGHTCopyright 2020−2021 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>. 0
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