X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=rsa%2Frsa_basic.c;fp=rsa%2Frsa_basic.c;h=02947edf705370b7385379754968927bb64d3633;hb=f3456452a0f13bfe6d332aaeeada5b626dac2739;hp=d152be2fb735e36093e81831411ad6f2f208a809;hpb=ec6325f5897037af068115ff5b83da2c2c17eae4;p=arm-crypto-lib.git

diff --git a/rsa/rsa_basic.c b/rsa/rsa_basic.c
index d152be2..02947ed 100644
--- a/rsa/rsa_basic.c
+++ b/rsa/rsa_basic.c
@@ -21,11 +21,19 @@
 #include <stdlib.h>
 #include <string.h>
 #include "bigint.h"
+#include "bigint_io.h"
 #include "rsa_basic.h"
 
 #include "cli.h"
+#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);
 }
 
@@ -39,24 +47,34 @@ 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){
+		cli_putstr("\r\nERROR: OOM!");
 		free(m1.wordv);
 		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;