Fix DSA parameter generation control error

[oweals/openssl.git] / doc / crypto / EVP_SignInit.pod

diff --git a/doc/crypto/EVP_SignInit.pod b/doc/crypto/EVP_SignInit.pod
index 620a623ab620639c63f0897e745d126f56ea79ce..c63d6b339318cbe6ba4b635f3c12df01846fa782 100644 (file)
--- a/doc/crypto/EVP_SignInit.pod
+++ b/doc/crypto/EVP_SignInit.pod
@@ -2,7 +2,8 @@
 
 =head1 NAME
 
-EVP_SignInit, EVP_SignUpdate, EVP_SignFinal - EVP signing functions
+EVP_SignInit, EVP_SignInit_ex, EVP_SignUpdate, EVP_SignFinal - EVP signing
+functions
 
 =head1 SYNOPSIS
 
@@ -30,9 +31,11 @@ signature context B<ctx>. This function can be called several times on the
 same B<ctx> to include additional data.
 
 EVP_SignFinal() signs the data in B<ctx> using the private key B<pkey> and
-places the signature in B<sig>. The number of bytes of data written (i.e. the
-length of the signature) will be written to the integer at B<s>, at most
-EVP_PKEY_size(pkey) bytes will be written. 
+places the signature in B<sig>. B<sig> must be at least EVP_PKEY_size(pkey)
+bytes in size. B<s> is an OUT paramter, and not used as an IN parameter.
+The number of bytes of data written (i.e. the length of the signature)
+will be written to the integer at B<s>, at most EVP_PKEY_size(pkey) bytes
+will be written.
 
 EVP_SignInit() initializes a signing context B<ctx> to use the default
 implementation of digest B<type>.