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-rw-r--r--doc/crypto/EVP_PKEY_encrypt.pod12
1 files changed, 9 insertions, 3 deletions
diff --git a/doc/crypto/EVP_PKEY_encrypt.pod b/doc/crypto/EVP_PKEY_encrypt.pod
index e495a81242b9..6799ce1010bd 100644
--- a/doc/crypto/EVP_PKEY_encrypt.pod
+++ b/doc/crypto/EVP_PKEY_encrypt.pod
@@ -43,19 +43,23 @@ indicates the operation is not supported by the public key algorithm.
=head1 EXAMPLE
-Encrypt data using OAEP (for RSA keys):
+Encrypt data using OAEP (for RSA keys). See also L<PEM_read_PUBKEY(3)|pem(3)> or
+L<d2i_X509(3)|d2i_X509(3)> for means to load a public key. You may also simply
+set 'eng = NULL;' to start with the default OpenSSL RSA implementation:
#include <openssl/evp.h>
#include <openssl/rsa.h>
+ #include <openssl/engine.h>
EVP_PKEY_CTX *ctx;
+ ENGINE *eng;
unsigned char *out, *in;
size_t outlen, inlen;
EVP_PKEY *key;
- /* NB: assumes key in, inlen are already set up
+ /* NB: assumes eng, key, in, inlen are already set up,
* and that key is an RSA public key
*/
- ctx = EVP_PKEY_CTX_new(key);
+ ctx = EVP_PKEY_CTX_new(key,eng);
if (!ctx)
/* Error occurred */
if (EVP_PKEY_encrypt_init(ctx) <= 0)
@@ -79,6 +83,8 @@ Encrypt data using OAEP (for RSA keys):
=head1 SEE ALSO
+L<d2i_X509(3)|d2i_X509(3)>,
+L<engine(3)|engine(3)>,
L<EVP_PKEY_CTX_new(3)|EVP_PKEY_CTX_new(3)>,
L<EVP_PKEY_decrypt(3)|EVP_PKEY_decrypt(3)>,
L<EVP_PKEY_sign(3)|EVP_PKEY_sign(3)>,