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Fix RSASSA-PSS example programs

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This commit is contained in:
Manuel Pégourié-Gonnard 2014-03-10 21:55:35 +01:00
parent 83cdffc437
commit 844a4c0aef
5 changed files with 34 additions and 4 deletions
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1
ChangeLog
View File

@ -29,6 +29,7 @@ Bugfix
* Fixed version-major intolerance in server
* Fixed CMake symlinking on out-of-source builds
* Fixed dependency issues in test suite
* Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
= PolarSSL 1.3.4 released on 2014-01-27
Features

15
include/polarssl/rsa.h
View File

@ -127,6 +127,21 @@ void rsa_init( rsa_context *ctx,
int padding,
int hash_id);
/**
* \brief Set padding for an already initialized RSA context
*
* Note: Set padding to RSA_PKCS_V21 for the RSAES-OAEP
* encryption scheme and the RSASSA-PSS signature scheme.
*
* \param ctx RSA context to be set
* \param padding RSA_PKCS_V15 or RSA_PKCS_V21
* \param hash_id RSA_PKCS_V21 hash identifier
*
* \note The hash_id parameter is actually ignored
* when using RSA_PKCS_V15 padding.
*/
void rsa_set_padding( rsa_context *ctx, int padding, int hash_id);
/**
* \brief Generate an RSA keypair
*

12
library/rsa.c
View File

@ -58,14 +58,22 @@ void rsa_init( rsa_context *ctx,
{
memset( ctx, 0, sizeof( rsa_context ) );
ctx->padding = padding;
ctx->hash_id = hash_id;
rsa_set_padding( ctx, padding, hash_id );
#if defined(POLARSSL_THREADING_C)
polarssl_mutex_init( &ctx->mutex );
#endif
}
/*
* Set padding for an existing RSA context
*/
void rsa_set_padding( rsa_context *ctx, int padding, int hash_id )
{
ctx->padding = padding;
ctx->hash_id = hash_id;
}
#if defined(POLARSSL_GENPRIME)
/*

5
programs/pkey/rsa_sign_pss.c
View File

@ -101,7 +101,8 @@ int main( int argc, char *argv[] )
if( ( ret = pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
{
ret = 1;
printf( " failed\n ! Could not open '%s'\n", argv[1] );
printf( " failed\n ! Could not read key from '%s'\n", argv[1] );
printf( " ! pk_parse_public_keyfile returned %d\n\n", ret );
goto exit;
}
@ -112,6 +113,8 @@ int main( int argc, char *argv[] )
goto exit;
}
rsa_set_padding( pk_rsa( pk ), RSA_PKCS_V21, POLARSSL_MD_SHA1 );
/*
* Compute the SHA-1 hash of the input file,
* then calculate the RSA signature of the hash.

5
programs/pkey/rsa_verify_pss.c
View File

@ -81,7 +81,8 @@ int main( int argc, char *argv[] )
if( ( ret = pk_parse_public_keyfile( &pk, argv[1] ) ) != 0 )
{
printf( " failed\n ! pk_parse_public_keyfile returned %d\n\n", ret );
printf( " failed\n ! Could not read key from '%s'\n", argv[1] );
printf( " ! pk_parse_public_keyfile returned %d\n\n", ret );
goto exit;
}
@ -92,6 +93,8 @@ int main( int argc, char *argv[] )
goto exit;
}
rsa_set_padding( pk_rsa( pk ), RSA_PKCS_V21, POLARSSL_MD_SHA1 );
/*
* Extract the RSA signature from the text file
*/