]> git.cryptolib.org Git - arm-crypto-lib.git/blobdiff - rsa/rsa_basic.c
a lot of fixing ...
[arm-crypto-lib.git] / rsa / rsa_basic.c
index 02947edf705370b7385379754968927bb64d3633..38c46a1f630fb68dd0fc78dc429fc12ea61198c1 100644 (file)
 #include "uart_lowlevel.h"
 
 void rsa_enc(bigint_t* data, rsa_publickey_t* key){
+/*
        cli_putstr("\r\n -->rsa_enc()\r\n m = ");
        bigint_print_hex(data);
        cli_putstr("\r\n e = ");
        bigint_print_hex(key->exponent);
        cli_putstr("\r\n n = ");
        bigint_print_hex(key->modulus);
+*/
        bigint_expmod_u(data, data, key->exponent, key->modulus);
 }
 
@@ -47,8 +49,6 @@ m = m2 + q * h
 
 uint8_t rsa_dec_crt_mono(bigint_t* data, rsa_privatekey_t* key){
        bigint_t m1, m2;
-       cli_putstr("\r\n --> rsa_dec_crt_mono()");
-       uart_flush(0);
        m1.wordv = malloc(key->components[0]->length_B * sizeof(bigint_word_t));
        m2.wordv = malloc(key->components[1]->length_B * sizeof(bigint_word_t));
        if(!m1.wordv || !m2.wordv){
@@ -57,24 +57,18 @@ uint8_t rsa_dec_crt_mono(bigint_t* data, rsa_privatekey_t* key){
                free(m2.wordv);
                return 1;
        }
-       cli_putc('a'); uart_flush(0);
        bigint_expmod_u(&m1, data, key->components[2], key->components[0]);
-       cli_putc('f'); uart_flush(0);
        bigint_expmod_u(&m2, data, key->components[3], key->components[1]);
-       cli_putc('b'); uart_flush(0);
        bigint_sub_s(&m1, &m1, &m2);
        while(BIGINT_NEG_MASK & m1.info){
                bigint_add_s(&m1, &m1, key->components[0]);
        }
 
-       cli_putc('c'); uart_flush(0);
        bigint_reduce(&m1, key->components[0]);
        bigint_mul_u(data, &m1, key->components[4]);
-       cli_putc('d'); uart_flush(0);
        bigint_reduce(data, key->components[0]);
        bigint_mul_u(data, data, key->components[1]);
        bigint_add_u(data, data, &m2);
-       cli_putc('e'); uart_flush(0);
        free(m1.wordv);
        free(m2.wordv);
        return 0;