Import OpenSSL 1.1.0f
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@@ -10,8 +10,8 @@ EVP_PKEY_decrypt_init, EVP_PKEY_decrypt - decrypt using a public key algorithm
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int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx);
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int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
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unsigned char *out, size_t *outlen,
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const unsigned char *in, size_t inlen);
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unsigned char *out, size_t *outlen,
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const unsigned char *in, size_t inlen);
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=head1 DESCRIPTION
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@@ -50,44 +50,53 @@ Decrypt data using OAEP (for RSA keys):
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EVP_PKEY_CTX *ctx;
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unsigned char *out, *in;
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size_t outlen, inlen;
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size_t outlen, inlen;
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EVP_PKEY *key;
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/* NB: assumes key in, inlen are already set up
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* and that key is an RSA private key
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*/
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ctx = EVP_PKEY_CTX_new(key);
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if (!ctx)
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/* Error occurred */
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/* Error occurred */
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if (EVP_PKEY_decrypt_init(ctx) <= 0)
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/* Error */
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/* Error */
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if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_OAEP_PADDING) <= 0)
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/* Error */
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/* Error */
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/* Determine buffer length */
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if (EVP_PKEY_decrypt(ctx, NULL, &outlen, in, inlen) <= 0)
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/* Error */
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/* Error */
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out = OPENSSL_malloc(outlen);
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if (!out)
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/* malloc failure */
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/* malloc failure */
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if (EVP_PKEY_decrypt(ctx, out, &outlen, in, inlen) <= 0)
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/* Error */
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/* Error */
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/* Decrypted data is outlen bytes written to buffer out */
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=head1 SEE ALSO
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L<EVP_PKEY_CTX_new(3)|EVP_PKEY_CTX_new(3)>,
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L<EVP_PKEY_encrypt(3)|EVP_PKEY_encrypt(3)>,
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L<EVP_PKEY_sign(3)|EVP_PKEY_sign(3)>,
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L<EVP_PKEY_verify(3)|EVP_PKEY_verify(3)>,
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L<EVP_PKEY_verify_recover(3)|EVP_PKEY_verify_recover(3)>,
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L<EVP_PKEY_derive(3)|EVP_PKEY_derive(3)>
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L<EVP_PKEY_CTX_new(3)>,
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L<EVP_PKEY_encrypt(3)>,
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L<EVP_PKEY_sign(3)>,
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L<EVP_PKEY_verify(3)>,
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L<EVP_PKEY_verify_recover(3)>,
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L<EVP_PKEY_derive(3)>
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=head1 HISTORY
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These functions were first added to OpenSSL 1.0.0.
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=head1 COPYRIGHT
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Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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