mirror of https://github.com/sipwise/rtpengine.git
Merge branch 'aes256' of https://github.com/aalba6675/rtpengine into aalba6675-aes256
Richard Fuchs
9 years ago
commit
e8d197a08c
@ -0,0 +1,38 @@
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##
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## Build daemon/
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## cd tests/
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## make -f Makefile.aes, output is binary t_crypt
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## run: ./t_crypt
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CC = gcc
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CPPFLAGS = -I../daemon -I../lib
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OBJS_DIR = ../daemon/
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OBJS = crypto.o log.o loglib.o
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LDFLAGS = $(shell pkg-config --libs glib-2.0)
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LDFLAGS += $(shell pkg-config --libs openssl)
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CFLAGS = -g $(shell pkg-config --cflags glib-2.0) -D_GNU_SOURCE
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%.d: %.c
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@set -e; rm -f $@; \
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$(CC) -M $(CPPFLAGS) $(shell pkg-config --cflags glib-2.0) -D_GNU_SOURCE $< > $@.$$$$; \
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sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
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rm -f $@.$$$$
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all: t_crypt
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sources = t_crypt.c
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include $(sources:.c=.d)
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t_crypt: t_crypt.o
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gcc -o $@ $< $(addprefix $(OBJS_DIR), $(OBJS)) $(LDFLAGS)
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.PHONY: clean
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clean:
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-rm -f t_crypt t_crypt.o
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@ -0,0 +1,288 @@
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#include <assert.h>
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#include <stdio.h>
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#include "crypto.h"
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#include "rtplib.h"
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uint8_t test_key[46] = {
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0xe1, 0xf9, 0x7a, 0x0d, 0x3e, 0x01, 0x8b, 0xe0,
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0xd6, 0x4f, 0xa3, 0x2c, 0x06, 0xde, 0x41, 0x39,
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0x0e, 0xc6, 0x75, 0xad, 0x49, 0x8a, 0xfe, 0xeb,
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0xb6, 0x96, 0x0b, 0x3a, 0xab, 0xe6, 0xc1, 0x73,
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0xc3, 0x17, 0xf2, 0xda, 0xbe, 0x35, 0x77, 0x93,
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0xb6, 0x96, 0x0b, 0x3a, 0xab, 0xe6
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};
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uint8_t rtp_plaintext_ref[28] = {
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0x80, 0x0f, 0x12, 0x34, 0xde, 0xca, 0xfb, 0xad,
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0xca, 0xfe, 0xba, 0xbe, 0xab, 0xab, 0xab, 0xab,
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0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
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0xab, 0xab, 0xab, 0xab
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};
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uint8_t rtcp_plaintext_ref[24] = {
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0x81, 0xc8, 0x00, 0x0b, 0xca, 0xfe, 0xba, 0xbe,
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0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
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0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
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};
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// SRTP Test Vectors
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// ROC = 0, SSRC = 0xcafebabe, SEQ_NUM = 0x1234
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uint8_t srtp_ciphertext_128[38] = {
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0x80, 0x0f, 0x12, 0x34, 0xde, 0xca, 0xfb, 0xad,
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0xca, 0xfe, 0xba, 0xbe, 0x4e, 0x55, 0xdc, 0x4c,
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0xe7, 0x99, 0x78, 0xd8, 0x8c, 0xa4, 0xd2, 0x15,
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0x94, 0x9d, 0x24, 0x02, 0xb7, 0x8d, 0x6a, 0xcc,
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0x99, 0xea, 0x17, 0x9b, 0x8d, 0xbb
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};
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uint8_t srtp_ciphertext_192[38] = {
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0x80, 0x0f, 0x12, 0x34, 0xde, 0xca, 0xfb, 0xad,
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0xca, 0xfe, 0xba, 0xbe, 0x01, 0x57, 0x81, 0x89,
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0x44, 0x62, 0x52, 0x9d, 0x91, 0xcf, 0x36, 0x59,
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0xd2, 0x46, 0x2d, 0xb3, 0x08, 0xd9, 0xa0, 0x44,
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0xc5, 0xd7, 0xd6, 0x8b, 0x26, 0xba
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};
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uint8_t srtp_ciphertext_256[38] = {
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0x80, 0x0f, 0x12, 0x34, 0xde, 0xca, 0xfb, 0xad,
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0xca, 0xfe, 0xba, 0xbe, 0x00, 0x98, 0x21, 0x9f,
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0x7e, 0xbd, 0xba, 0x1c, 0x3d, 0x22, 0xf4, 0x93,
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0x6f, 0x1e, 0xac, 0x99, 0x06, 0xf6, 0xb2, 0x27,
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0xc8, 0x49, 0x61, 0xa7, 0xb4, 0x28
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};
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// SRTCP Test Vectors
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// SSRC = 0xcafebabe
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uint8_t srtcp_ciphertext_128[38] = {
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0x81, 0xc8, 0x00, 0x0b, 0xca, 0xfe, 0xba, 0xbe,
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0x71, 0x28, 0x03, 0x5b, 0xe4, 0x87, 0xb9, 0xbd,
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0xbe, 0xf8, 0x90, 0x41, 0xf9, 0x77, 0xa5, 0xa8,
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0x80, 0x00, 0x00, 0x01, 0x99, 0x3e, 0x08, 0xcd,
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0x54, 0xd6, 0xc1, 0x23, 0x07, 0x98
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};
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uint8_t srtcp_ciphertext_192[38] = {
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0x81, 0xc8, 0x00, 0x0b, 0xca, 0xfe, 0xba, 0xbe,
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0x96, 0x6d, 0x60, 0x3e, 0x71, 0xf9, 0xaf, 0x33,
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0x5c, 0xf9, 0x09, 0x1a, 0x50, 0xca, 0x4d, 0x3a,
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0x80, 0x00, 0x00, 0x01, 0xd4, 0x2b, 0x40, 0x21,
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0x8d, 0xde, 0x49, 0x90, 0xbd, 0xef
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};
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uint8_t srtcp_ciphertext_256[38] = {
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0x81, 0xc8, 0x00, 0x0b, 0xca, 0xfe, 0xba, 0xbe,
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0x0a, 0x86, 0x5d, 0x33, 0x9e, 0x31, 0x26, 0x93,
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0x59, 0x23, 0x87, 0xd4, 0x5b, 0x99, 0xa5, 0x57,
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0x80, 0x00, 0x00, 0x01, 0x84, 0xf3, 0xb4, 0xf2,
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0xb5, 0x95, 0x61, 0x5a, 0xf9, 0xb5
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};
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// Another set of AES-256 test vectors from libsrtp
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uint8_t aes_256_test_key[46] = {
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0xf0, 0xf0, 0x49, 0x14, 0xb5, 0x13, 0xf2, 0x76,
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0x3a, 0x1b, 0x1f, 0xa1, 0x30, 0xf1, 0x0e, 0x29,
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0x98, 0xf6, 0xf6, 0xe4, 0x3e, 0x43, 0x09, 0xd1,
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0xe6, 0x22, 0xa0, 0xe3, 0x32, 0xb9, 0xf1, 0xb6,
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0x3b, 0x04, 0x80, 0x3d, 0xe5, 0x1e, 0xe7, 0xc9,
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0x64, 0x23, 0xab, 0x5b, 0x78, 0xd2
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};
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uint8_t aes_256_rtp_plaintext_ref[28] = {
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0x80, 0x0f, 0x12, 0x34, 0xde, 0xca, 0xfb, 0xad,
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0xca, 0xfe, 0xba, 0xbe, 0xab, 0xab, 0xab, 0xab,
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0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
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0xab, 0xab, 0xab, 0xab
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};
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uint8_t aes_256_srtp_ciphertext[38] = {
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0x80, 0x0f, 0x12, 0x34, 0xde, 0xca, 0xfb, 0xad,
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0xca, 0xfe, 0xba, 0xbe, 0xf1, 0xd9, 0xde, 0x17,
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0xff, 0x25, 0x1f, 0xf1, 0xaa, 0x00, 0x77, 0x74,
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0xb0, 0xb4, 0xb4, 0x0d, 0xa0, 0x8d, 0x9d, 0x9a,
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0x5b, 0x3a, 0x55, 0xd8, 0x87, 0x3b
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};
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#define RTP_HEADER_LEN 12
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#define RTCP_HEADER_LEN 8
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// Test: AES-128 CM
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void srtp_validate (struct crypto_context *c, struct crypto_context *c2, char* message, uint8_t *plaintext, uint8_t *ciphertext,
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uint8_t *rtcp_plaintext, uint8_t *rtcp_ciphertext)
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{
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str payload, hash;
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uint8_t o_hash[10];
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uint8_t srtp_plaintext[38];
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uint8_t srtp_ciphertext[38];
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uint8_t srtcp_plaintext[38];
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uint8_t srtcp_ciphertext[38];
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memcpy(srtp_plaintext, plaintext, 28);
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memcpy(srtp_ciphertext, ciphertext, 38);
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// in-place crypto so we must encrypt first
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payload.len = 16;
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payload.s = srtp_plaintext+RTP_HEADER_LEN;
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crypto_encrypt_rtp(c, (struct rtp_header *)srtp_plaintext, &payload, ntohs(((struct rtp_header *)srtp_plaintext)->seq_num));
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hash.len = 28;
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hash.s = srtp_plaintext;
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c->params.crypto_suite->hash_rtp(c, srtp_plaintext+28, &hash, ntohs(((struct rtp_header *)srtp_plaintext)->seq_num));
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assert( memcmp(payload.s, srtp_ciphertext+RTP_HEADER_LEN, 26) == 0 );
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printf("%s RTP encrypt: PASS\n", message);
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hash.s = srtp_ciphertext;
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c->params.crypto_suite->hash_rtp(c, o_hash, &hash, ntohs(((struct rtp_header *)srtp_plaintext)->seq_num));
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payload.len = 16;
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payload.s = srtp_ciphertext+RTP_HEADER_LEN;
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crypto_decrypt_rtp(c, (struct rtp_header *)srtp_ciphertext, &payload, ntohs(((struct rtp_header *)srtp_ciphertext)->seq_num));
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assert( memcmp(payload.s, rtp_plaintext_ref+RTP_HEADER_LEN, 16) == 0 );
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assert( memcmp(o_hash, srtp_ciphertext+RTP_HEADER_LEN+16, 10) == 0 );
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printf("%s RTP decrypt: PASS\n", message);
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// in-place crypto so we must encrypt first
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if (!c2) return;
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memcpy(srtcp_plaintext, rtcp_plaintext, 24);
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memcpy(srtcp_ciphertext, rtcp_ciphertext, 38);
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memcpy(srtcp_plaintext+24, srtcp_ciphertext+24, 4);
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payload.len = 16;
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payload.s = srtcp_plaintext+RTCP_HEADER_LEN;
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crypto_encrypt_rtcp(c2, (struct rtcp_packet *)srtcp_plaintext, &payload, 1);
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hash.len = 28;
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hash.s = srtcp_plaintext;
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c->params.crypto_suite->hash_rtcp(c2, srtcp_plaintext+28, &hash);
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assert( memcmp(payload.s, srtcp_ciphertext+RTCP_HEADER_LEN, 30) == 0 );
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printf("%s RTCP encrypt: PASS\n", message);
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hash.s = srtcp_ciphertext;
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c->params.crypto_suite->hash_rtcp(c2, o_hash, &hash);
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payload.len = 16;
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payload.s = srtcp_ciphertext+RTCP_HEADER_LEN;
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crypto_decrypt_rtcp(c2, (struct rtcp_packet *)srtcp_ciphertext, &payload, 1);
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assert( memcmp(payload.s, rtcp_plaintext_ref+RTCP_HEADER_LEN, 16) == 0 );
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assert( memcmp(o_hash, srtcp_ciphertext+RTCP_HEADER_LEN+16+4, 10) == 0 );
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printf("%s RTCP decrypt: PASS\n", message);
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}
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extern void crypto_init_main();
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void check_session_keys(struct crypto_context *c, int i) {
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str s;
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str_init_len_assert(&s, c->session_key, c->params.crypto_suite->session_key_len);
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if (crypto_gen_session_key(c, &s, i++, 6))
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goto error;
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str_init_len_assert(&s, c->session_auth_key, c->params.crypto_suite->srtp_auth_key_len);
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if (crypto_gen_session_key(c, &s, i++, 6))
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goto error;
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str_init_len_assert(&s, c->session_salt, c->params.crypto_suite->session_salt_len);
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if (crypto_gen_session_key(c, &s, i, 6))
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goto error;
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c->have_session_key = 1;
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crypto_init_session_key(c);
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error:
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return;
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}
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int main(int argc, char** argv) {
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str suite;
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str s;
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const struct crypto_suite *c;
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struct crypto_context ctx, ctx2;
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crypto_init_main();
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str_init(&suite, "AES_CM_128_HMAC_SHA1_80");
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c = crypto_find_suite(&suite);
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assert(c);
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memset(&ctx, 0, sizeof(ctx));
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ctx.params.crypto_suite = c;
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memcpy(ctx.params.master_key, test_key, 16);
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memcpy(ctx.params.master_salt, (uint8_t*)test_key+16, 14);
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ctx.params.mki_len = 0;
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check_session_keys(&ctx, 0);
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memset(&ctx2, 0, sizeof(ctx2));
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ctx2.params.crypto_suite = c;
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memcpy(ctx2.params.master_key, test_key, 16);
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memcpy(ctx2.params.master_salt, (uint8_t*)test_key+16, 14);
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ctx2.params.mki_len = 0;
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check_session_keys(&ctx2, 3);
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srtp_validate(&ctx, &ctx2, "SRTP AES-CM-128", rtp_plaintext_ref, srtp_ciphertext_128,
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rtcp_plaintext_ref, srtcp_ciphertext_128);
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str_init(&suite, "AES_CM_192_HMAC_SHA1_80");
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c = crypto_find_suite(&suite);
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assert(c);
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memset(&ctx, 0, sizeof(ctx));
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ctx.params.crypto_suite = c;
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memcpy(ctx.params.master_key, test_key, 24);
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memcpy(ctx.params.master_salt, (uint8_t*)test_key+24, 14);
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ctx.params.mki_len = 0;
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check_session_keys(&ctx, 0);
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memset(&ctx2, 0, sizeof(ctx2));
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ctx2.params.crypto_suite = c;
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memcpy(ctx2.params.master_key, test_key, 24);
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memcpy(ctx2.params.master_salt, (uint8_t*)test_key+24, 14);
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ctx2.params.mki_len = 0;
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check_session_keys(&ctx2, 3);
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||||
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srtp_validate(&ctx, &ctx2, "SRTP AES-CM-192", rtp_plaintext_ref, srtp_ciphertext_192,
|
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rtcp_plaintext_ref, srtcp_ciphertext_192);
|
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|
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str_init(&suite, "AES_CM_256_HMAC_SHA1_80");
|
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c = crypto_find_suite(&suite);
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assert(c);
|
||||
|
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memset(&ctx, 0, sizeof(ctx));
|
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ctx.params.crypto_suite = c;
|
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memcpy(ctx.params.master_key, test_key, 32);
|
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memcpy(ctx.params.master_salt, (uint8_t*)test_key+32, 14);
|
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ctx.params.mki_len = 0;
|
||||
|
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check_session_keys(&ctx, 0);
|
||||
|
||||
memset(&ctx2, 0, sizeof(ctx2));
|
||||
ctx2.params.crypto_suite = c;
|
||||
memcpy(ctx2.params.master_key, test_key, 32);
|
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memcpy(ctx2.params.master_salt, (uint8_t*)test_key+32, 14);
|
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ctx2.params.mki_len = 0;
|
||||
|
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check_session_keys(&ctx2, 3);
|
||||
|
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srtp_validate(&ctx, &ctx2, "SRTP AES-CM-256", rtp_plaintext_ref, srtp_ciphertext_256,
|
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rtcp_plaintext_ref, srtcp_ciphertext_256);
|
||||
|
||||
|
||||
memset(&ctx, 0, sizeof(ctx));
|
||||
ctx.params.crypto_suite = c;
|
||||
memcpy(ctx.params.master_key, aes_256_test_key, 32);
|
||||
memcpy(ctx.params.master_salt, (uint8_t*)aes_256_test_key+32, 14);
|
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ctx.params.mki_len = 0;
|
||||
|
||||
check_session_keys(&ctx, 0);
|
||||
|
||||
srtp_validate(&ctx, NULL, "extra AES-CM-256", aes_256_rtp_plaintext_ref, aes_256_srtp_ciphertext,
|
||||
NULL, NULL);
|
||||
|
||||
}
|
||||
Loading…
Reference in new issue