Commit 198d8059 authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

Add SRP test vectors from RFC5054 



Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
parent 8f332ac9

test/srptest.c

+150 −0
Original line number Diff line number Diff line
@@ -130,6 +130,150 @@ static int run_srp(const char *username, const char *client_pass, 
    return ret;

}



static int check_bn(const char *name, const BIGNUM *bn, const char *hexbn)

{

    BIGNUM *tmp = NULL;

    int rv;

    if (BN_hex2bn(&tmp, hexbn) == 0)

        return 0;

    rv = BN_cmp(bn, tmp);

    if (rv == 0) {

        printf("%s = ", name);

        BN_print_fp(stdout, bn);

        printf("\n");

        BN_free(tmp);

        return 1;

    }

    printf("Unexpected %s value\n", name);

    printf("Expecting: ");

    BN_print_fp(stdout, tmp);

    printf("\nReceived: ");

    BN_print_fp(stdout, bn);

    printf("\n");

    BN_free(tmp);

    return 0;

}



/* SRP test vectors from RFC5054 */

static int run_srp_kat(void)

{

    int ret = 0;

    BIGNUM *s = NULL;

    BIGNUM *v = NULL;

    BIGNUM *a = NULL;

    BIGNUM *b = NULL;

    BIGNUM *u = NULL;

    BIGNUM *x = NULL;

    BIGNUM *Apub = NULL;

    BIGNUM *Bpub = NULL;

    BIGNUM *Kclient = NULL;

    BIGNUM *Kserver = NULL;

    /* use builtin 1024-bit params */

    const SRP_gN *GN = SRP_get_default_gN("1024");



    if (GN == NULL) {

        fprintf(stderr, "Failed to get SRP parameters\n");

        goto err;

    }

    BN_hex2bn(&s, "BEB25379D1A8581EB5A727673A2441EE");

    /* Set up server's password entry */

    if (!SRP_create_verifier_BN("alice", "password123", &s, &v, GN->N,

                                GN->g)) {

        fprintf(stderr, "Failed to create SRP verifier\n");

        goto err;

    }



    if (!check_bn("v", v,

                 "7E273DE8696FFC4F4E337D05B4B375BEB0DDE1569E8FA00A9886D812"

                 "9BADA1F1822223CA1A605B530E379BA4729FDC59F105B4787E5186F5"

                 "C671085A1447B52A48CF1970B4FB6F8400BBF4CEBFBB168152E08AB5"

                 "EA53D15C1AFF87B2B9DA6E04E058AD51CC72BFC9033B564E26480D78"

                 "E955A5E29E7AB245DB2BE315E2099AFB"))

        goto err;



    /* Server random */

    BN_hex2bn(&b, "E487CB59D31AC550471E81F00F6928E01DDA08E974A004F49E61F5D1"

                  "05284D20");



    /* Server's first message */

    Bpub = SRP_Calc_B(b, GN->N, GN->g, v);



    if (!SRP_Verify_B_mod_N(Bpub, GN->N)) {

        fprintf(stderr, "Invalid B\n");

        goto err;

    }



    if (!check_bn("B", Bpub,

                  "BD0C61512C692C0CB6D041FA01BB152D4916A1E77AF46AE105393011"

                  "BAF38964DC46A0670DD125B95A981652236F99D9B681CBF87837EC99"

                  "6C6DA04453728610D0C6DDB58B318885D7D82C7F8DEB75CE7BD4FBAA"

                  "37089E6F9C6059F388838E7A00030B331EB76840910440B1B27AAEAE"

                  "EB4012B7D7665238A8E3FB004B117B58"))

        goto err;



    /* Client random */

    BN_hex2bn(&a, "60975527035CF2AD1989806F0407210BC81EDC04E2762A56AFD529DD"

                  "DA2D4393");



    /* Client's response */

    Apub = SRP_Calc_A(a, GN->N, GN->g);



    if (!SRP_Verify_A_mod_N(Apub, GN->N)) {

        fprintf(stderr, "Invalid A\n");

        return -1;

    }



    if (!check_bn("A", Apub,

                  "61D5E490F6F1B79547B0704C436F523DD0E560F0C64115BB72557EC4"

                  "4352E8903211C04692272D8B2D1A5358A2CF1B6E0BFCF99F921530EC"

                  "8E39356179EAE45E42BA92AEACED825171E1E8B9AF6D9C03E1327F44"

                  "BE087EF06530E69F66615261EEF54073CA11CF5858F0EDFDFE15EFEA"

                  "B349EF5D76988A3672FAC47B0769447B"))

        goto err;



    /* Both sides calculate u */

    u = SRP_Calc_u(Apub, Bpub, GN->N);



    if (!check_bn("u", u, "CE38B9593487DA98554ED47D70A7AE5F462EF019"))

        goto err;



    /* Client's key */

    x = SRP_Calc_x(s, "alice", "password123");

    Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u);

    if (!check_bn("Client's key", Kclient,

                  "B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"

                  "233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"

                  "41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"

                  "3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"

                  "C346D7E474B29EDE8A469FFECA686E5A"))

        goto err;

    /* Server's key */

    Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N);

    if (!check_bn("Server's key", Kserver,

                  "B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"

                  "233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"

                  "41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"

                  "3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"

                  "C346D7E474B29EDE8A469FFECA686E5A"))

        goto err;



    ret = 1;



    err:

    BN_clear_free(Kclient);

    BN_clear_free(Kserver);

    BN_clear_free(x);

    BN_free(u);

    BN_free(Apub);

    BN_clear_free(a);

    BN_free(Bpub);

    BN_clear_free(b);

    BN_free(s);

    BN_clear_free(v);



    return ret;

}



int main(int argc, char **argv)

{

    BIO *bio_err;
@@ -151,6 +295,12 @@ int main(int argc, char **argv) 
        return 1;

    }



    /* KAT from RFC5054: should pass */

    if (run_srp_kat() != 1) {

        fprintf(stderr, "SRP KAT failed\n");

        return 1;

    }



#ifndef OPENSSL_NO_CRYPTO_MDEBUG

    if (CRYPTO_mem_leaks(bio_err) <= 0)

        return 1;