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Add HMAC-MD5 library and tests
This commit is contained in:
Pavel Tvrdík
parent
aa75e6dfe1
commit
40d323e150
61
lib/md5.c
61
lib/md5.c
@ -247,3 +247,64 @@ void md5_transform(u32 buf[4], u32 const in[16])
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buf[2] += c;
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buf[3] += d;
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}
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/**
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* MD5-HMAC
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*/
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static void
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md5_hash_buffer(byte *outbuf, const byte *buffer, size_t length)
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{
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md5_context hd_tmp;
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md5_init(&hd_tmp);
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md5_update(&hd_tmp, buffer, length);
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memcpy(outbuf, md5_final(&hd_tmp), MD5_SIZE);
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}
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void
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md5_hmac_init(md5_hmac_context *ctx, const byte *key, size_t keylen)
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{
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byte keybuf[MD5_BLOCK_SIZE], buf[MD5_BLOCK_SIZE];
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// Hash the key if necessary
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if (keylen <= MD5_BLOCK_SIZE)
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{
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memcpy(keybuf, key, keylen);
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bzero(keybuf + keylen, MD5_BLOCK_SIZE - keylen);
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}
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else
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{
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md5_hash_buffer(keybuf, key, keylen);
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bzero(keybuf + MD5_SIZE, MD5_BLOCK_SIZE - MD5_SIZE);
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}
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// Initialize the inner digest
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md5_init(&ctx->ictx);
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int i;
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for (i = 0; i < MD5_BLOCK_SIZE; i++)
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buf[i] = keybuf[i] ^ 0x36;
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md5_update(&ctx->ictx, buf, MD5_BLOCK_SIZE);
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// Initialize the outer digest
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md5_init(&ctx->octx);
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for (i = 0; i < MD5_BLOCK_SIZE; i++)
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buf[i] = keybuf[i] ^ 0x5c;
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md5_update(&ctx->octx, buf, MD5_BLOCK_SIZE);
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}
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void md5_hmac_update(md5_hmac_context *ctx, const byte *buf, size_t buflen)
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{
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// Just update the inner digest
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md5_update(&ctx->ictx, buf, buflen);
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}
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byte *md5_hmac_final(md5_hmac_context *ctx)
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{
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// Finish the inner digest
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byte *isha = md5_final(&ctx->ictx);
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// Finish the outer digest
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md5_update(&ctx->octx, isha, MD5_SIZE);
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return md5_final(&ctx->octx);
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}
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12
lib/md5.h
12
lib/md5.h
@ -28,5 +28,17 @@ byte *md5_final(md5_context *context);
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void md5_transform(u32 buf[4], u32 const in[16]);
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/**
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* HMAC-MD5
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*/
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typedef struct
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{
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md5_context ictx;
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md5_context octx;
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} md5_hmac_context;
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void md5_hmac_init(md5_hmac_context *ctx, const byte *key, size_t keylen);
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void md5_hmac_update(md5_hmac_context *ctx, const byte *buf, size_t buflen);
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byte *md5_hmac_final(md5_hmac_context *ctx);
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#endif /* _BIRD_MD5_H_ */
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144
lib/md5_test.c
144
lib/md5_test.c
@ -69,12 +69,154 @@ t_md5(void)
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return BT_SUCCESS;
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}
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#define HMAC_BUFFER_SIZE 80
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struct hmac_data_in {
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byte key[HMAC_BUFFER_SIZE];
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uint key_len;
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byte data[HMAC_BUFFER_SIZE];
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uint data_len;
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};
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static void
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get_md5_hmac(const struct hmac_data_in in, char (*out_hash)[MD5_HEX_SIZE])
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{
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md5_hmac_context ctx;
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md5_hmac_init(&ctx, in.key, in.key_len);
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md5_hmac_update(&ctx, in.data, in.data_len);
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byte *hash_byte = md5_hmac_final(&ctx);
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int i;
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for (i = 0; i < MD5_SIZE; i++)
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sprintf(*out_hash + i*2, "%02x", hash_byte[i]);
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}
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static int
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t_md5_hmac(void)
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{
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struct in_out {
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struct hmac_data_in in;
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char out[MD5_HEX_SIZE];
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} in_out[] = {
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{
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.in = {
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.key = {
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0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
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0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
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},
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.key_len = 16,
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.data = "Hi There",
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.data_len = 8,
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},
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.out = "9294727a3638bb1c13f48ef8158bfc9d",
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},
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{
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.in = {
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.key = "Jefe",
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.key_len = 4,
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.data = "what do ya want for nothing?",
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.data_len = 28,
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},
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.out = "750c783e6ab0b503eaa86e310a5db738",
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},
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{
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.in = {
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.key = {
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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},
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.key_len = 16,
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.data = {
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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},
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.data_len = 50,
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},
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.out = "56be34521d144c88dbb8c733f0e8b3f6",
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},
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{
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.in = {
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.key = {
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
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0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14,
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0x15, 0x16, 0x17, 0x18, 0x19,
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},
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.key_len = 25,
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.data = {
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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},
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.data_len = 50,
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},
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.out = "697eaf0aca3a3aea3a75164746ffaa79",
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},
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{
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.in = {
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.key = {
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0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
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0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
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},
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.key_len = 16,
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.data = "Test With Truncation",
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.data_len = 20,
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},
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.out = "56461ef2342edc00f9bab995690efd4c",
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},
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{
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.in = {
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.key = {
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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},
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.key_len = 80,
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.data = "Test Using Larger Than Block-Size Key - Hash Key First",
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.data_len = 54,
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},
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.out = "6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd",
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},
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{
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.in = {
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.key = {
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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},
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.key_len = 80,
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.data = "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data",
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.data_len = 73,
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},
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.out = "6f630fad67cda0ee1fb1f562db3aa53e",
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},
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};
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bt_assert_fn_in_out(get_md5_hmac, in_out, NULL, "'%s'");
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return BT_SUCCESS;
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}
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int
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main(int argc, char *argv[])
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{
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bt_init(argc, argv);
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bt_test_suite(t_md5, "Test Suite by RFC 1321");
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bt_test_suite(t_md5, "Test Suite by RFC 1321");
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bt_test_suite(t_md5_hmac, "Test Suite by RFC 2202");
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return bt_end();
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}
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