EVP_ASYM_CIPHER-RSA - RSA Asymmetric Cipher algorithm support

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       Licensed under the Apache License 2.0 (the "License").  You may not use this file  except  in  compliance
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       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                          EVP_ASYM_CIPHER-RSA(7SSL)

       Asymmetric Cipher support for the RSA key type.

   RSAAsymmetricCipherparameters
       "pad-mode" (OSSL_ASYM_CIPHER_PARAM_PAD_MODE) <UTF8 string>
           The default provider understands these RSA padding modes in string form:

           "none" (OSSL_PKEY_RSA_PAD_MODE_NONE)
           "oaep" (OSSL_PKEY_RSA_PAD_MODE_OAEP)
           "pkcs1" (OSSL_PKEY_RSA_PAD_MODE_PKCSV15)
               This  padding  mode  is  no  longer  supported  by  the  FIPS  provider for key agreement and key
               transport.  (This is a FIPS 140-3 requirement)

           "x931" (OSSL_PKEY_RSA_PAD_MODE_X931)
       "pad-mode" (OSSL_ASYM_CIPHER_PARAM_PAD_MODE) <integer>
           The default provider understands these RSA padding modes in integer form:

           1 (RSA_PKCS1_PADDING)
               This padding mode is no longer  supported  by  the  FIPS  provider  for  key  agreement  and  key
               transport.  (This is a FIPS 140-3 requirement)

           3 (RSA_NO_PADDING)
           4 (RSA_PKCS1_OAEP_PADDING)
           5 (RSA_X931_PADDING)

           See EVP_PKEY_CTX_set_rsa_padding(3) for further details.

       "digest" (OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST) <UTF8 string>
       "digest-props" (OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST_PROPS) <UTF8 string>
       "mgf1-digest" (OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST) <UTF8 string>
       "mgf1-digest-props" (OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST_PROPS) <UTF8 string>
       "oaep-label" (OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL) <octet string>
       "tls-client-version" (OSSL_ASYM_CIPHER_PARAM_TLS_CLIENT_VERSION) <unsigned integer>
           See RSA_PKCS1_WITH_TLS_PADDING on the page EVP_PKEY_CTX_set_rsa_padding(3).

       "tls-negotiated-version" (OSSL_ASYM_CIPHER_PARAM_TLS_CLIENT_VERSION) <unsigned integer>
           See RSA_PKCS1_WITH_TLS_PADDING on the page EVP_PKEY_CTX_set_rsa_padding(3).

           See "Asymmetric Cipher Parameters" in provider-asym_cipher(7) for more information.

       The OpenSSL FIPS provider also supports the following parameters:

       "fips-indicator" (OSSL_ASYM_CIPHER_PARAM_FIPS_APPROVED_INDICATOR) <integer>
       "key-check" (OSSL_ASYM_CIPHER_PARAM_FIPS_KEY_CHECK) <integer>
           See "Asymmetric Cipher Parameters" in provider-asym_cipher(7) for more information.

       "pkcs15-pad-disabled" (OSSL_ASYM_CIPHER_PARAM_FIPS_RSA_PKCS15_PAD_DISABLED) <integer>
           The  default  value of 1 causes an error during encryption if the RSA padding mode is set to "pkcs1".
           Setting this to zero will ignore the error and set the approved "fips-indicator" to 0.   This  option
           breaks FIPS compliance if it causes the approved "fips-indicator" to return 0.

       EVP_ASYM_CIPHER-RSA - RSA Asymmetric Cipher algorithm support

EVP_PKEY-RSA(7),   EVP_PKEY(3),  provider-asym_cipher(7),  provider-keymgmt(7),  OSSL_PROVIDER-default(7)
       OSSL_PROVIDER-FIPS(7)