EVP_KEM-RSA - EVP_KEM RSA keytype and algorithm support

The RSA keytype and its parameters are described in EVP_PKEY-RSA(7). See EVP_PKEY_encapsulate(3) and EVP_PKEY_decapsulate(3) for more info.

"operation" (OSSL_KEM_PARAM_OPERATION) <UTF8 string>
The OpenSSL RSA Key Encapsulation Mechanism only currently supports the following operation
The encapsulate function simply generates a secret using random bytes and then encrypts the secret using the RSA public key (with no padding). The decapsulate function recovers the secret using the RSA private key.

This can be set using EVP_PKEY_CTX_set_kem_op().

Section RSASVE Generate Operation (RSASVE.GENERATE). Section RSASVE Recovery Operation (RSASVE.RECOVER).

EVP_PKEY_CTX_set_kem_op(3), EVP_PKEY_encapsulate(3), EVP_PKEY_decapsulate(3) EVP_KEYMGMT(3), EVP_PKEY(3), provider-keymgmt(7)

This functionality was added in OpenSSL 3.0.

Copyright 2020 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.

2024-04-28 3.3.0