Add documentation for the new non-curve type specific EC functions

[openssl.git] / doc / man3 / EVP_PKEY_verify_recover.pod

diff --git a/doc/man3/EVP_PKEY_verify_recover.pod b/doc/man3/EVP_PKEY_verify_recover.pod
index 837bc64ec2275ae358388cae7b3431cc004c689f..85d76f84ac37f900a4d01ae9d2860a742a33fafa 100644 (file)
--- a/doc/man3/EVP_PKEY_verify_recover.pod
+++ b/doc/man3/EVP_PKEY_verify_recover.pod
@@ -10,8 +10,8 @@ EVP_PKEY_verify_recover_init, EVP_PKEY_verify_recover - recover signature using
 
  int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
  int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
-                        unsigned char *rout, size_t *routlen,
-                        const unsigned char *sig, size_t siglen);
+                             unsigned char *rout, size_t *routlen,
+                             const unsigned char *sig, size_t siglen);
 
 =head1 DESCRIPTION
 
@@ -60,30 +60,32 @@ Recover digest originally signed using PKCS#1 and SHA256 digest:
  unsigned char *rout, *sig;
  size_t routlen, siglen;
  EVP_PKEY *verify_key;
- /* NB: assumes verify_key, sig and siglen are already set up
+
+ /*
+  * NB: assumes verify_key, sig and siglen are already set up
   * and that verify_key is an RSA public key
   */
- ctx = EVP_PKEY_CTX_new(verify_key);
+ ctx = EVP_PKEY_CTX_new(verify_key, NULL /* no engine */);
  if (!ctx)
-        /* Error occurred */
+     /* Error occurred */
  if (EVP_PKEY_verify_recover_init(ctx) <= 0)
-        /* Error */
+     /* Error */
  if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_PADDING) <= 0)
-        /* Error */
+     /* Error */
  if (EVP_PKEY_CTX_set_signature_md(ctx, EVP_sha256()) <= 0)
-        /* Error */
+     /* Error */
 
  /* Determine buffer length */
  if (EVP_PKEY_verify_recover(ctx, NULL, &routlen, sig, siglen) <= 0)
-        /* Error */
+     /* Error */
 
  rout = OPENSSL_malloc(routlen);
 
  if (!rout)
-        /* malloc failure */
+     /* malloc failure */
 
  if (EVP_PKEY_verify_recover(ctx, rout, &routlen, sig, siglen) <= 0)
-        /* Error */
+     /* Error */
 
  /* Recovered data is routlen bytes written to buffer rout */
 
@@ -102,7 +104,7 @@ These functions were first added to OpenSSL 1.0.0.
 
 =head1 COPYRIGHT
 
-Copyright 2013-2016 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2013-2018 The OpenSSL Project Authors. All Rights Reserved.
 
 Licensed under the OpenSSL license (the "License").  You may not use
 this file except in compliance with the License.  You can obtain a copy