X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=rsa%2Frsa_basic.c;h=e3687de17bfc0381bf67d45134904ce8c2361e69;hb=d8591851c323b773f2bb15ccc59d61c6a8ad3e89;hp=a166dfa2384909d6e3b2ce8f90cd277ab0421b52;hpb=e5296441c98c35140f909ca1dbdb8d6852f996d3;p=arm-crypto-lib.git

diff --git a/rsa/rsa_basic.c b/rsa/rsa_basic.c
index a166dfa..e3687de 100644
--- a/rsa/rsa_basic.c
+++ b/rsa/rsa_basic.c
@@ -32,7 +32,7 @@
 #include "string-extras.h"
 #endif
 
-void rsa_enc(bigint_t* data, rsa_publickey_t* key){
+void rsa_enc(bigint_t* data, const rsa_publickey_t* key){
 /*
 	cli_putstr("\r\n -->rsa_enc()\r\n m = ");
 	bigint_print_hex(data);
@@ -41,7 +41,7 @@ void rsa_enc(bigint_t* data, rsa_publickey_t* key){
 	cli_putstr("\r\n n = ");
 	bigint_print_hex(key->modulus);
 */
-	bigint_expmod_u(data, data, key->exponent, key->modulus);
+	bigint_expmod_u(data, data, &key->exponent, &key->modulus);
 }
 
 /*
@@ -52,47 +52,47 @@ h = (m1 - m2) * qinv % p
 m = m2 + q * h
 */
 
-uint8_t rsa_dec_crt_mono(bigint_t* data, rsa_privatekey_t* key){
+uint8_t rsa_dec_crt_mono(bigint_t* data, const rsa_privatekey_t* key){
 	bigint_t m1, m2;
-	m1.wordv = malloc(key->components[0]->length_B * sizeof(bigint_word_t));
-	m2.wordv = malloc(key->components[1]->length_B * sizeof(bigint_word_t));
+	m1.wordv = malloc(key->components[0].length_W * sizeof(bigint_word_t));
+	m2.wordv = malloc(key->components[1].length_W * sizeof(bigint_word_t));
 	if(!m1.wordv || !m2.wordv){
 #if DEBUG
 		cli_putstr("\r\nERROR: OOM!");
 #endif
-		free(m1.wordv);
 		free(m2.wordv);
+		free(m1.wordv);
 		return 1;
 	}
 #if DEBUG
 	cli_putstr("\r\nDBG: expmod m1 ...");
 #endif
-	bigint_expmod_u(&m1, data, key->components[2], key->components[0]);
+	bigint_expmod_u(&m1, data, &key->components[2], &key->components[0]);
 #if DEBUG
 	cli_putstr("expmod m2 ...");
 #endif
-	bigint_expmod_u(&m2, data, key->components[3], key->components[1]);
+	bigint_expmod_u(&m2, data, &key->components[3], &key->components[1]);
 	bigint_sub_s(&m1, &m1, &m2);
 	while(BIGINT_NEG_MASK & m1.info){
-		bigint_add_s(&m1, &m1, key->components[0]);
+		bigint_add_s(&m1, &m1, &key->components[0]);
 	}
 
 #if DEBUG
 	cli_putstr("\r\nDBG: reduce-mul ...");
 #endif
-	bigint_reduce(&m1, key->components[0]);
-	bigint_mul_u(data, &m1, key->components[4]);
-	bigint_reduce(data, key->components[0]);
-	bigint_mul_u(data, data, key->components[1]);
+	bigint_reduce(&m1, &key->components[0]);
+	bigint_mul_u(data, &m1, &key->components[4]);
+	bigint_reduce(data, &key->components[0]);
+	bigint_mul_u(data, data, &key->components[1]);
 	bigint_add_u(data, data, &m2);
-	free(m1.wordv);
 	free(m2.wordv);
+	free(m1.wordv);
 	return 0;
 }
 
-uint8_t rsa_dec(bigint_t* data, rsa_privatekey_t* key){
+uint8_t rsa_dec(bigint_t* data, const rsa_privatekey_t* key){
 	if(key->n == 1){
-		bigint_expmod_u(data, data, key->components[0], key->modulus);
+		bigint_expmod_u(data, data, &key->components[0], &key->modulus);
 		return 0;
 	}
 	if(key->n == 5){
@@ -113,7 +113,7 @@ void rsa_os2ip(bigint_t* dest, const void* data, uint32_t length_B){
 	if(data){
 		memcpy(dest->wordv, data, length_B)
 	}
-	dest->length_B = length_B;
+	dest->length_W = length_B;
 #else
 	uint8_t off;
 	off = (sizeof(bigint_word_t) - length_B % sizeof(bigint_word_t)) % sizeof(bigint_word_t);
@@ -133,12 +133,13 @@ void rsa_os2ip(bigint_t* dest, const void* data, uint32_t length_B){
 			memset(dest->wordv, 0, off);
 		}
 	}
-	dest->length_B = (length_B + off) / sizeof(bigint_word_t);
+	dest->length_W = (length_B + off) / sizeof(bigint_word_t);
 #if DEBUG
-	cli_putstr("\r\nDBG: dest->length_B = 0x");
-	cli_hexdump_rev(&(dest->length_B), 2);
+	cli_putstr("\r\nDBG: dest->length_W = 0x");
+	cli_hexdump_rev(&(dest->length_W), 2);
 #endif
 #endif
+	dest->info = 0;
 	bigint_changeendianess(dest);
 	bigint_adjust(dest);
 }
@@ -146,9 +147,9 @@ void rsa_os2ip(bigint_t* dest, const void* data, uint32_t length_B){
 void rsa_i2osp(void* dest, bigint_t* src, uint16_t* out_length_B){
 #if BIGINT_WORD_SIZE == 8
 	if(dest){
-		uint8_t *e = src->wordv + src->length_B;
+		uint8_t *e = src->wordv + src->length_W;
 		uint16_t i;
-		for(i=src->length_B; i>0; --i){
+		for(i=src->length_W; i>0; --i){
 			*((uint8_t*)dest) = *--e;
 			dest = (uint8_t*)dest + 1;
 		}
@@ -156,7 +157,7 @@ void rsa_i2osp(void* dest, bigint_t* src, uint16_t* out_length_B){
 		bigint_changeendianess(src);
 	}
 
-	*out_length_B = src->length_B;
+	*out_length_B = src->length_W;
 #else
 	*out_length_B = bigint_get_first_set_bit(src) / 8 + 1;
 	if(dest){