Initial import

4 files changed, 941 insertions, 0 deletions

diff --git a/openssl/crypto/jpake/jpake.c b/openssl/crypto/jpake/jpake.c
new file mode 100644
index 0000000..8e4b633
--- /dev/null
+++ b/openssl/crypto/jpake/jpake.c
@@ -0,0 +1,511 @@
+#include "jpake.h"
+
+#include <openssl/crypto.h>
+#include <openssl/sha.h>
+#include <openssl/err.h>
+#include <memory.h>
+
+/*
+ * In the definition, (xa, xb, xc, xd) are Alice's (x1, x2, x3, x4) or
+ * Bob's (x3, x4, x1, x2). If you see what I mean.
+ */
+
+typedef struct
+    {
+    char *name;  /* Must be unique */
+    char *peer_name;
+    BIGNUM *p;
+    BIGNUM *g;
+    BIGNUM *q;
+    BIGNUM *gxc; /* Alice's g^{x3} or Bob's g^{x1} */
+    BIGNUM *gxd; /* Alice's g^{x4} or Bob's g^{x2} */
+    } JPAKE_CTX_PUBLIC;
+
+struct JPAKE_CTX
+    {
+    JPAKE_CTX_PUBLIC p;
+    BIGNUM *secret;   /* The shared secret */
+    BN_CTX *ctx;
+    BIGNUM *xa;       /* Alice's x1 or Bob's x3 */
+    BIGNUM *xb;       /* Alice's x2 or Bob's x4 */
+    BIGNUM *key;      /* The calculated (shared) key */
+    };
+
+static void JPAKE_ZKP_init(JPAKE_ZKP *zkp)
+    {
+    zkp->gr = BN_new();
+    zkp->b = BN_new();
+    }
+
+static void JPAKE_ZKP_release(JPAKE_ZKP *zkp)
+    {
+    BN_free(zkp->b);
+    BN_free(zkp->gr);
+    }
+
+/* Two birds with one stone - make the global name as expected */
+#define JPAKE_STEP_PART_init	JPAKE_STEP2_init
+#define JPAKE_STEP_PART_release	JPAKE_STEP2_release
+
+void JPAKE_STEP_PART_init(JPAKE_STEP_PART *p)
+    {
+    p->gx = BN_new();
+    JPAKE_ZKP_init(&p->zkpx);
+    }
+
+void JPAKE_STEP_PART_release(JPAKE_STEP_PART *p)
+    {
+    JPAKE_ZKP_release(&p->zkpx);
+    BN_free(p->gx);
+    }
+
+void JPAKE_STEP1_init(JPAKE_STEP1 *s1)
+    {
+    JPAKE_STEP_PART_init(&s1->p1);
+    JPAKE_STEP_PART_init(&s1->p2);
+    }
+
+void JPAKE_STEP1_release(JPAKE_STEP1 *s1)
+    {
+    JPAKE_STEP_PART_release(&s1->p2);
+    JPAKE_STEP_PART_release(&s1->p1);
+    }
+
+static void JPAKE_CTX_init(JPAKE_CTX *ctx, const char *name,
+			   const char *peer_name, const BIGNUM *p,
+			   const BIGNUM *g, const BIGNUM *q,
+			   const BIGNUM *secret)
+    {
+    ctx->p.name = OPENSSL_strdup(name);
+    ctx->p.peer_name = OPENSSL_strdup(peer_name);
+    ctx->p.p = BN_dup(p);
+    ctx->p.g = BN_dup(g);
+    ctx->p.q = BN_dup(q);
+    ctx->secret = BN_dup(secret);
+
+    ctx->p.gxc = BN_new();
+    ctx->p.gxd = BN_new();
+
+    ctx->xa = BN_new();
+    ctx->xb = BN_new();
+    ctx->key = BN_new();
+    ctx->ctx = BN_CTX_new();
+    }
+    
+static void JPAKE_CTX_release(JPAKE_CTX *ctx)
+    {
+    BN_CTX_free(ctx->ctx);
+    BN_clear_free(ctx->key);
+    BN_clear_free(ctx->xb);
+    BN_clear_free(ctx->xa);
+
+    BN_free(ctx->p.gxd);
+    BN_free(ctx->p.gxc);
+
+    BN_clear_free(ctx->secret);
+    BN_free(ctx->p.q);
+    BN_free(ctx->p.g);
+    BN_free(ctx->p.p);
+    OPENSSL_free(ctx->p.peer_name);
+    OPENSSL_free(ctx->p.name);
+
+    memset(ctx, '\0', sizeof *ctx);
+    }
+    
+JPAKE_CTX *JPAKE_CTX_new(const char *name, const char *peer_name,
+			 const BIGNUM *p, const BIGNUM *g, const BIGNUM *q,
+			 const BIGNUM *secret)
+    {
+    JPAKE_CTX *ctx = OPENSSL_malloc(sizeof *ctx);
+
+    JPAKE_CTX_init(ctx, name, peer_name, p, g, q, secret);
+
+    return ctx;
+    }
+
+void JPAKE_CTX_free(JPAKE_CTX *ctx)
+    {
+    JPAKE_CTX_release(ctx);
+    OPENSSL_free(ctx);
+    }
+
+static void hashlength(SHA_CTX *sha, size_t l)
+    {
+    unsigned char b[2];
+
+    OPENSSL_assert(l <= 0xffff);
+    b[0] = l >> 8;
+    b[1] = l&0xff;
+    SHA1_Update(sha, b, 2);
+    }
+
+static void hashstring(SHA_CTX *sha, const char *string)
+    {
+    size_t l = strlen(string);
+
+    hashlength(sha, l);
+    SHA1_Update(sha, string, l);
+    }
+
+static void hashbn(SHA_CTX *sha, const BIGNUM *bn)
+    {
+    size_t l = BN_num_bytes(bn);
+    unsigned char *bin = OPENSSL_malloc(l);
+
+    hashlength(sha, l);
+    BN_bn2bin(bn, bin);
+    SHA1_Update(sha, bin, l);
+    OPENSSL_free(bin);
+    }
+
+/* h=hash(g, g^r, g^x, name) */
+static void zkp_hash(BIGNUM *h, const BIGNUM *zkpg, const JPAKE_STEP_PART *p,
+		     const char *proof_name)
+    {
+    unsigned char md[SHA_DIGEST_LENGTH];
+    SHA_CTX sha;
+
+   /*
+    * XXX: hash should not allow moving of the boundaries - Java code
+    * is flawed in this respect. Length encoding seems simplest.
+    */
+    SHA1_Init(&sha);
+    hashbn(&sha, zkpg);
+    OPENSSL_assert(!BN_is_zero(p->zkpx.gr));
+    hashbn(&sha, p->zkpx.gr);
+    hashbn(&sha, p->gx);
+    hashstring(&sha, proof_name);
+    SHA1_Final(md, &sha);
+    BN_bin2bn(md, SHA_DIGEST_LENGTH, h);
+    }
+
+/*
+ * Prove knowledge of x
+ * Note that p->gx has already been calculated
+ */
+static void generate_zkp(JPAKE_STEP_PART *p, const BIGNUM *x,
+			 const BIGNUM *zkpg, JPAKE_CTX *ctx)
+    {
+    BIGNUM *r = BN_new();
+    BIGNUM *h = BN_new();
+    BIGNUM *t = BN_new();
+
+   /*
+    * r in [0,q)
+    * XXX: Java chooses r in [0, 2^160) - i.e. distribution not uniform
+    */
+    BN_rand_range(r, ctx->p.q);
+   /* g^r */
+    BN_mod_exp(p->zkpx.gr, zkpg, r, ctx->p.p, ctx->ctx);
+
+   /* h=hash... */
+    zkp_hash(h, zkpg, p, ctx->p.name);
+
+   /* b = r - x*h */
+    BN_mod_mul(t, x, h, ctx->p.q, ctx->ctx);
+    BN_mod_sub(p->zkpx.b, r, t, ctx->p.q, ctx->ctx);
+
+   /* cleanup */
+    BN_free(t);
+    BN_free(h);
+    BN_free(r);
+    }
+
+static int verify_zkp(const JPAKE_STEP_PART *p, const BIGNUM *zkpg,
+		      JPAKE_CTX *ctx)
+    {
+    BIGNUM *h = BN_new();
+    BIGNUM *t1 = BN_new();
+    BIGNUM *t2 = BN_new();
+    BIGNUM *t3 = BN_new();
+    int ret = 0;
+
+    zkp_hash(h, zkpg, p, ctx->p.peer_name);
+
+   /* t1 = g^b */
+    BN_mod_exp(t1, zkpg, p->zkpx.b, ctx->p.p, ctx->ctx);
+   /* t2 = (g^x)^h = g^{hx} */
+    BN_mod_exp(t2, p->gx, h, ctx->p.p, ctx->ctx);
+   /* t3 = t1 * t2 = g^{hx} * g^b = g^{hx+b} = g^r (allegedly) */
+    BN_mod_mul(t3, t1, t2, ctx->p.p, ctx->ctx);
+
+   /* verify t3 == g^r */
+    if(BN_cmp(t3, p->zkpx.gr) == 0)
+	ret = 1;
+    else
+	JPAKEerr(JPAKE_F_VERIFY_ZKP, JPAKE_R_ZKP_VERIFY_FAILED);
+
+   /* cleanup */
+    BN_free(t3);
+    BN_free(t2);
+    BN_free(t1);
+    BN_free(h);
+
+    return ret;
+    }    
+
+static void generate_step_part(JPAKE_STEP_PART *p, const BIGNUM *x,
+			       const BIGNUM *g, JPAKE_CTX *ctx)
+    {
+    BN_mod_exp(p->gx, g, x, ctx->p.p, ctx->ctx);
+    generate_zkp(p, x, g, ctx);
+    }
+
+/* Generate each party's random numbers. xa is in [0, q), xb is in [1, q). */
+static void genrand(JPAKE_CTX *ctx)
+    {
+    BIGNUM *qm1;
+
+   /* xa in [0, q) */
+    BN_rand_range(ctx->xa, ctx->p.q);
+
+   /* q-1 */
+    qm1 = BN_new();
+    BN_copy(qm1, ctx->p.q);
+    BN_sub_word(qm1, 1);
+
+   /* ... and xb in [0, q-1) */
+    BN_rand_range(ctx->xb, qm1);
+   /* [1, q) */
+    BN_add_word(ctx->xb, 1);
+
+   /* cleanup */
+    BN_free(qm1);
+    }
+
+int JPAKE_STEP1_generate(JPAKE_STEP1 *send, JPAKE_CTX *ctx)
+    {
+    genrand(ctx);
+    generate_step_part(&send->p1, ctx->xa, ctx->p.g, ctx);
+    generate_step_part(&send->p2, ctx->xb, ctx->p.g, ctx);
+
+    return 1;
+    }
+
+/* g^x is a legal value */
+static int is_legal(const BIGNUM *gx, const JPAKE_CTX *ctx)
+    {
+    BIGNUM *t;
+    int res;
+    
+    if(BN_is_negative(gx) || BN_is_zero(gx) || BN_cmp(gx, ctx->p.p) >= 0)
+	return 0;
+
+    t = BN_new();
+    BN_mod_exp(t, gx, ctx->p.q, ctx->p.p, ctx->ctx);
+    res = BN_is_one(t);
+    BN_free(t);
+
+    return res;
+    }
+
+int JPAKE_STEP1_process(JPAKE_CTX *ctx, const JPAKE_STEP1 *received)
+    {
+    if(!is_legal(received->p1.gx, ctx))
+	{
+	JPAKEerr(JPAKE_F_JPAKE_STEP1_PROCESS, JPAKE_R_G_TO_THE_X3_IS_NOT_LEGAL);
+	return 0;
+	}
+
+    if(!is_legal(received->p2.gx, ctx))
+	{
+	JPAKEerr(JPAKE_F_JPAKE_STEP1_PROCESS, JPAKE_R_G_TO_THE_X4_IS_NOT_LEGAL);
+	return 0;
+	}
+
+   /* verify their ZKP(xc) */
+    if(!verify_zkp(&received->p1, ctx->p.g, ctx))
+	{
+	JPAKEerr(JPAKE_F_JPAKE_STEP1_PROCESS, JPAKE_R_VERIFY_X3_FAILED);
+	return 0;
+	}
+
+   /* verify their ZKP(xd) */
+    if(!verify_zkp(&received->p2, ctx->p.g, ctx))
+	{
+	JPAKEerr(JPAKE_F_JPAKE_STEP1_PROCESS, JPAKE_R_VERIFY_X4_FAILED);
+	return 0;
+	}
+
+   /* g^xd != 1 */
+    if(BN_is_one(received->p2.gx))
+	{
+	JPAKEerr(JPAKE_F_JPAKE_STEP1_PROCESS, JPAKE_R_G_TO_THE_X4_IS_ONE);
+	return 0;
+	}
+
+   /* Save the bits we need for later */
+    BN_copy(ctx->p.gxc, received->p1.gx);
+    BN_copy(ctx->p.gxd, received->p2.gx);
+
+    return 1;
+    }
+
+
+int JPAKE_STEP2_generate(JPAKE_STEP2 *send, JPAKE_CTX *ctx)
+    {
+    BIGNUM *t1 = BN_new();
+    BIGNUM *t2 = BN_new();
+
+   /*
+    * X = g^{(xa + xc + xd) * xb * s}
+    * t1 = g^xa
+    */
+    BN_mod_exp(t1, ctx->p.g, ctx->xa, ctx->p.p, ctx->ctx);
+   /* t2 = t1 * g^{xc} = g^{xa} * g^{xc} = g^{xa + xc} */
+    BN_mod_mul(t2, t1, ctx->p.gxc, ctx->p.p, ctx->ctx);
+   /* t1 = t2 * g^{xd} = g^{xa + xc + xd} */
+    BN_mod_mul(t1, t2, ctx->p.gxd, ctx->p.p, ctx->ctx);
+   /* t2 = xb * s */
+    BN_mod_mul(t2, ctx->xb, ctx->secret, ctx->p.q, ctx->ctx);
+
+   /*
+    * ZKP(xb * s)
+    * XXX: this is kinda funky, because we're using
+    *
+    * g' = g^{xa + xc + xd}
+    *
+    * as the generator, which means X is g'^{xb * s}
+    * X = t1^{t2} = t1^{xb * s} = g^{(xa + xc + xd) * xb * s}
+    */
+    generate_step_part(send, t2, t1, ctx);
+
+   /* cleanup */
+    BN_free(t1);
+    BN_free(t2);
+
+    return 1;
+    }
+
+/* gx = g^{xc + xa + xb} * xd * s */
+static int compute_key(JPAKE_CTX *ctx, const BIGNUM *gx)
+    {
+    BIGNUM *t1 = BN_new();
+    BIGNUM *t2 = BN_new();
+    BIGNUM *t3 = BN_new();
+
+   /*
+    * K = (gx/g^{xb * xd * s})^{xb}
+    *   = (g^{(xc + xa + xb) * xd * s - xb * xd *s})^{xb}
+    *   = (g^{(xa + xc) * xd * s})^{xb}
+    *   = g^{(xa + xc) * xb * xd * s}
+    * [which is the same regardless of who calculates it]
+    */
+
+   /* t1 = (g^{xd})^{xb} = g^{xb * xd} */
+    BN_mod_exp(t1, ctx->p.gxd, ctx->xb, ctx->p.p, ctx->ctx);
+   /* t2 = -s = q-s */
+    BN_sub(t2, ctx->p.q, ctx->secret);
+   /* t3 = t1^t2 = g^{-xb * xd * s} */
+    BN_mod_exp(t3, t1, t2, ctx->p.p, ctx->ctx);
+   /* t1 = gx * t3 = X/g^{xb * xd * s} */
+    BN_mod_mul(t1, gx, t3, ctx->p.p, ctx->ctx);
+   /* K = t1^{xb} */
+    BN_mod_exp(ctx->key, t1, ctx->xb, ctx->p.p, ctx->ctx);
+
+   /* cleanup */
+    BN_free(t3);
+    BN_free(t2);
+    BN_free(t1);
+
+    return 1;
+    }
+
+int JPAKE_STEP2_process(JPAKE_CTX *ctx, const JPAKE_STEP2 *received)
+    {
+    BIGNUM *t1 = BN_new();
+    BIGNUM *t2 = BN_new();
+    int ret = 0;
+
+   /*
+    * g' = g^{xc + xa + xb} [from our POV]
+    * t1 = xa + xb
+    */
+    BN_mod_add(t1, ctx->xa, ctx->xb, ctx->p.q, ctx->ctx);
+   /* t2 = g^{t1} = g^{xa+xb} */
+    BN_mod_exp(t2, ctx->p.g, t1, ctx->p.p, ctx->ctx);
+   /* t1 = g^{xc} * t2 = g^{xc + xa + xb} */
+    BN_mod_mul(t1, ctx->p.gxc, t2, ctx->p.p, ctx->ctx);
+
+    if(verify_zkp(received, t1, ctx))
+	ret = 1;
+    else
+	JPAKEerr(JPAKE_F_JPAKE_STEP2_PROCESS, JPAKE_R_VERIFY_B_FAILED);
+
+    compute_key(ctx, received->gx);
+
+   /* cleanup */
+    BN_free(t2);
+    BN_free(t1);
+
+    return ret;
+    }
+
+static void quickhashbn(unsigned char *md, const BIGNUM *bn)
+    {
+    SHA_CTX sha;
+
+    SHA1_Init(&sha);
+    hashbn(&sha, bn);
+    SHA1_Final(md, &sha);
+    }
+
+void JPAKE_STEP3A_init(JPAKE_STEP3A *s3a)
+    {}
+
+int JPAKE_STEP3A_generate(JPAKE_STEP3A *send, JPAKE_CTX *ctx)
+    {
+    quickhashbn(send->hhk, ctx->key);
+    SHA1(send->hhk, sizeof send->hhk, send->hhk);
+
+    return 1;
+    }
+
+int JPAKE_STEP3A_process(JPAKE_CTX *ctx, const JPAKE_STEP3A *received)
+    {
+    unsigned char hhk[SHA_DIGEST_LENGTH];
+
+    quickhashbn(hhk, ctx->key);
+    SHA1(hhk, sizeof hhk, hhk);
+    if(memcmp(hhk, received->hhk, sizeof hhk))
+	{
+	JPAKEerr(JPAKE_F_JPAKE_STEP3A_PROCESS, JPAKE_R_HASH_OF_HASH_OF_KEY_MISMATCH);
+	return 0;
+	}
+    return 1;
+    }
+
+void JPAKE_STEP3A_release(JPAKE_STEP3A *s3a)
+    {}
+
+void JPAKE_STEP3B_init(JPAKE_STEP3B *s3b)
+    {}
+
+int JPAKE_STEP3B_generate(JPAKE_STEP3B *send, JPAKE_CTX *ctx)
+    {
+    quickhashbn(send->hk, ctx->key);
+
+    return 1;
+    }
+
+int JPAKE_STEP3B_process(JPAKE_CTX *ctx, const JPAKE_STEP3B *received)
+    {
+    unsigned char hk[SHA_DIGEST_LENGTH];
+
+    quickhashbn(hk, ctx->key);
+    if(memcmp(hk, received->hk, sizeof hk))
+	{
+	JPAKEerr(JPAKE_F_JPAKE_STEP3B_PROCESS, JPAKE_R_HASH_OF_KEY_MISMATCH);
+	return 0;
+	}
+    return 1;
+    }
+
+void JPAKE_STEP3B_release(JPAKE_STEP3B *s3b)
+    {}
+
+const BIGNUM *JPAKE_get_shared_key(JPAKE_CTX *ctx)
+    {
+    return ctx->key;
+    }
+
diff --git a/openssl/crypto/jpake/jpake.h b/openssl/crypto/jpake/jpake.h
new file mode 100644
index 0000000..fd143b4
--- /dev/null
+++ b/openssl/crypto/jpake/jpake.h
@@ -0,0 +1,131 @@
+/*
+ * Implement J-PAKE, as described in
+ * http://grouper.ieee.org/groups/1363/Research/contributions/hao-ryan-2008.pdf
+ * 
+ * With hints from http://www.cl.cam.ac.uk/~fh240/software/JPAKE2.java.
+ */
+
+#ifndef HEADER_JPAKE_H
+#define HEADER_JPAKE_H
+
+#include <openssl/opensslconf.h>
+
+#ifdef OPENSSL_NO_JPAKE
+#error JPAKE is disabled.
+#endif
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#include <openssl/bn.h>
+#include <openssl/sha.h>
+
+typedef struct JPAKE_CTX JPAKE_CTX;
+
+/* Note that "g" in the ZKPs is not necessarily the J-PAKE g. */
+typedef struct
+    {
+    BIGNUM *gr; /* g^r (r random) */
+    BIGNUM *b;  /* b = r - x*h, h=hash(g, g^r, g^x, name) */
+    } JPAKE_ZKP;
+
+typedef struct
+    {
+    BIGNUM *gx;       /* g^x in step 1, g^(xa + xc + xd) * xb * s in step 2 */
+    JPAKE_ZKP zkpx;   /* ZKP(x) or ZKP(xb * s) */
+    } JPAKE_STEP_PART;
+
+typedef struct
+    {
+    JPAKE_STEP_PART p1;   /* g^x3, ZKP(x3) or g^x1, ZKP(x1) */
+    JPAKE_STEP_PART p2;   /* g^x4, ZKP(x4) or g^x2, ZKP(x2) */
+    } JPAKE_STEP1;
+
+typedef JPAKE_STEP_PART JPAKE_STEP2;
+
+typedef struct
+    {
+    unsigned char hhk[SHA_DIGEST_LENGTH];
+    } JPAKE_STEP3A;
+
+typedef struct
+    {
+    unsigned char hk[SHA_DIGEST_LENGTH];
+    } JPAKE_STEP3B;
+
+/* Parameters are copied */
+JPAKE_CTX *JPAKE_CTX_new(const char *name, const char *peer_name,
+			 const BIGNUM *p, const BIGNUM *g, const BIGNUM *q,
+			 const BIGNUM *secret);
+void JPAKE_CTX_free(JPAKE_CTX *ctx);
+
+/*
+ * Note that JPAKE_STEP1 can be used multiple times before release
+ * without another init.
+ */
+void JPAKE_STEP1_init(JPAKE_STEP1 *s1);
+int JPAKE_STEP1_generate(JPAKE_STEP1 *send, JPAKE_CTX *ctx);
+int JPAKE_STEP1_process(JPAKE_CTX *ctx, const JPAKE_STEP1 *received);
+void JPAKE_STEP1_release(JPAKE_STEP1 *s1);
+
+/*
+ * Note that JPAKE_STEP2 can be used multiple times before release
+ * without another init.
+ */
+void JPAKE_STEP2_init(JPAKE_STEP2 *s2);
+int JPAKE_STEP2_generate(JPAKE_STEP2 *send, JPAKE_CTX *ctx);
+int JPAKE_STEP2_process(JPAKE_CTX *ctx, const JPAKE_STEP2 *received);
+void JPAKE_STEP2_release(JPAKE_STEP2 *s2);
+
+/*
+ * Optionally verify the shared key. If the shared secrets do not
+ * match, the two ends will disagree about the shared key, but
+ * otherwise the protocol will succeed.
+ */
+void JPAKE_STEP3A_init(JPAKE_STEP3A *s3a);
+int JPAKE_STEP3A_generate(JPAKE_STEP3A *send, JPAKE_CTX *ctx);
+int JPAKE_STEP3A_process(JPAKE_CTX *ctx, const JPAKE_STEP3A *received);
+void JPAKE_STEP3A_release(JPAKE_STEP3A *s3a);
+
+void JPAKE_STEP3B_init(JPAKE_STEP3B *s3b);
+int JPAKE_STEP3B_generate(JPAKE_STEP3B *send, JPAKE_CTX *ctx);
+int JPAKE_STEP3B_process(JPAKE_CTX *ctx, const JPAKE_STEP3B *received);
+void JPAKE_STEP3B_release(JPAKE_STEP3B *s3b);
+
+/*
+ * the return value belongs to the library and will be released when
+ * ctx is released, and will change when a new handshake is performed.
+ */
+const BIGNUM *JPAKE_get_shared_key(JPAKE_CTX *ctx);
+
+/* BEGIN ERROR CODES */
+/* The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+void ERR_load_JPAKE_strings(void);
+
+/* Error codes for the JPAKE functions. */
+
+/* Function codes. */
+#define JPAKE_F_JPAKE_STEP1_PROCESS			 101
+#define JPAKE_F_JPAKE_STEP2_PROCESS			 102
+#define JPAKE_F_JPAKE_STEP3A_PROCESS			 103
+#define JPAKE_F_JPAKE_STEP3B_PROCESS			 104
+#define JPAKE_F_VERIFY_ZKP				 100
+
+/* Reason codes. */
+#define JPAKE_R_G_TO_THE_X3_IS_NOT_LEGAL		 108
+#define JPAKE_R_G_TO_THE_X4_IS_NOT_LEGAL		 109
+#define JPAKE_R_G_TO_THE_X4_IS_ONE			 105
+#define JPAKE_R_HASH_OF_HASH_OF_KEY_MISMATCH		 106
+#define JPAKE_R_HASH_OF_KEY_MISMATCH			 107
+#define JPAKE_R_VERIFY_B_FAILED				 102
+#define JPAKE_R_VERIFY_X3_FAILED			 103
+#define JPAKE_R_VERIFY_X4_FAILED			 104
+#define JPAKE_R_ZKP_VERIFY_FAILED			 100
+
+#ifdef  __cplusplus
+}
+#endif
+#endif
diff --git a/openssl/crypto/jpake/jpake_err.c b/openssl/crypto/jpake/jpake_err.c
new file mode 100644
index 0000000..a9a9dee
--- /dev/null
+++ b/openssl/crypto/jpake/jpake_err.c
@@ -0,0 +1,107 @@
+/* crypto/jpake/jpake_err.c */
+/* ====================================================================
+ * Copyright (c) 1999-2010 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+/* NOTE: this file was auto generated by the mkerr.pl script: any changes
+ * made to it will be overwritten when the script next updates this file,
+ * only reason strings will be preserved.
+ */
+
+#include <stdio.h>
+#include <openssl/err.h>
+#include <openssl/jpake.h>
+
+/* BEGIN ERROR CODES */
+#ifndef OPENSSL_NO_ERR
+
+#define ERR_FUNC(func) ERR_PACK(ERR_LIB_JPAKE,func,0)
+#define ERR_REASON(reason) ERR_PACK(ERR_LIB_JPAKE,0,reason)
+
+static ERR_STRING_DATA JPAKE_str_functs[]=
+	{
+{ERR_FUNC(JPAKE_F_JPAKE_STEP1_PROCESS),	"JPAKE_STEP1_process"},
+{ERR_FUNC(JPAKE_F_JPAKE_STEP2_PROCESS),	"JPAKE_STEP2_process"},
+{ERR_FUNC(JPAKE_F_JPAKE_STEP3A_PROCESS),	"JPAKE_STEP3A_process"},
+{ERR_FUNC(JPAKE_F_JPAKE_STEP3B_PROCESS),	"JPAKE_STEP3B_process"},
+{ERR_FUNC(JPAKE_F_VERIFY_ZKP),	"VERIFY_ZKP"},
+{0,NULL}
+	};
+
+static ERR_STRING_DATA JPAKE_str_reasons[]=
+	{
+{ERR_REASON(JPAKE_R_G_TO_THE_X3_IS_NOT_LEGAL),"g to the x3 is not legal"},
+{ERR_REASON(JPAKE_R_G_TO_THE_X4_IS_NOT_LEGAL),"g to the x4 is not legal"},
+{ERR_REASON(JPAKE_R_G_TO_THE_X4_IS_ONE)  ,"g to the x4 is one"},
+{ERR_REASON(JPAKE_R_HASH_OF_HASH_OF_KEY_MISMATCH),"hash of hash of key mismatch"},
+{ERR_REASON(JPAKE_R_HASH_OF_KEY_MISMATCH),"hash of key mismatch"},
+{ERR_REASON(JPAKE_R_VERIFY_B_FAILED)     ,"verify b failed"},
+{ERR_REASON(JPAKE_R_VERIFY_X3_FAILED)    ,"verify x3 failed"},
+{ERR_REASON(JPAKE_R_VERIFY_X4_FAILED)    ,"verify x4 failed"},
+{ERR_REASON(JPAKE_R_ZKP_VERIFY_FAILED)   ,"zkp verify failed"},
+{0,NULL}
+	};
+
+#endif
+
+void ERR_load_JPAKE_strings(void)
+	{
+#ifndef OPENSSL_NO_ERR
+
+	if (ERR_func_error_string(JPAKE_str_functs[0].error) == NULL)
+		{
+		ERR_load_strings(0,JPAKE_str_functs);
+		ERR_load_strings(0,JPAKE_str_reasons);
+		}
+#endif
+	}
diff --git a/openssl/crypto/jpake/jpaketest.c b/openssl/crypto/jpake/jpaketest.c
new file mode 100644
index 0000000..eaba75e
--- /dev/null
+++ b/openssl/crypto/jpake/jpaketest.c
@@ -0,0 +1,192 @@
+#include <openssl/opensslconf.h>
+
+#ifdef OPENSSL_NO_JPAKE
+
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+    printf("No J-PAKE support\n");
+    return(0);
+}
+
+#else
+
+#include <openssl/jpake.h>
+#include <openssl/err.h>
+
+static void showbn(const char *name, const BIGNUM *bn)
+    {
+    fputs(name, stdout);
+    fputs(" = ", stdout);
+    BN_print_fp(stdout, bn);
+    putc('\n', stdout);
+    }
+
+static int run_jpake(JPAKE_CTX *alice, JPAKE_CTX *bob)
+    {
+    JPAKE_STEP1 alice_s1;
+    JPAKE_STEP1 bob_s1;
+    JPAKE_STEP2 alice_s2;
+    JPAKE_STEP2 bob_s2;
+    JPAKE_STEP3A alice_s3a;
+    JPAKE_STEP3B bob_s3b;
+
+   /* Alice -> Bob: step 1 */
+    puts("A->B s1");
+    JPAKE_STEP1_init(&alice_s1);
+    JPAKE_STEP1_generate(&alice_s1, alice);
+    if(!JPAKE_STEP1_process(bob, &alice_s1))
+	{
+	printf("Bob fails to process Alice's step 1\n");
+	ERR_print_errors_fp(stdout);
+	return 1;
+	}
+    JPAKE_STEP1_release(&alice_s1);
+
+   /* Bob -> Alice: step 1 */
+    puts("B->A s1");
+    JPAKE_STEP1_init(&bob_s1);
+    JPAKE_STEP1_generate(&bob_s1, bob);
+    if(!JPAKE_STEP1_process(alice, &bob_s1))
+	{
+	printf("Alice fails to process Bob's step 1\n");
+	ERR_print_errors_fp(stdout);
+	return 2;
+	}
+    JPAKE_STEP1_release(&bob_s1);
+
+   /* Alice -> Bob: step 2 */
+    puts("A->B s2");
+    JPAKE_STEP2_init(&alice_s2);
+    JPAKE_STEP2_generate(&alice_s2, alice);
+    if(!JPAKE_STEP2_process(bob, &alice_s2))
+	{
+	printf("Bob fails to process Alice's step 2\n");
+	ERR_print_errors_fp(stdout);
+	return 3;
+	}
+    JPAKE_STEP2_release(&alice_s2);
+
+   /* Bob -> Alice: step 2 */
+    puts("B->A s2");
+    JPAKE_STEP2_init(&bob_s2);
+    JPAKE_STEP2_generate(&bob_s2, bob);
+    if(!JPAKE_STEP2_process(alice, &bob_s2))
+	{
+	printf("Alice fails to process Bob's step 2\n");
+	ERR_print_errors_fp(stdout);
+	return 4;
+	}
+    JPAKE_STEP2_release(&bob_s2);
+
+    showbn("Alice's key", JPAKE_get_shared_key(alice));
+    showbn("Bob's key  ", JPAKE_get_shared_key(bob));
+
+   /* Alice -> Bob: step 3a */
+    puts("A->B s3a");
+    JPAKE_STEP3A_init(&alice_s3a);
+    JPAKE_STEP3A_generate(&alice_s3a, alice);
+    if(!JPAKE_STEP3A_process(bob, &alice_s3a))
+	{
+	printf("Bob fails to process Alice's step 3a\n");
+	ERR_print_errors_fp(stdout);
+	return 5;
+	}
+    JPAKE_STEP3A_release(&alice_s3a);
+    
+   /* Bob -> Alice: step 3b */
+    puts("B->A s3b");
+    JPAKE_STEP3B_init(&bob_s3b);
+    JPAKE_STEP3B_generate(&bob_s3b, bob);
+    if(!JPAKE_STEP3B_process(alice, &bob_s3b))
+	{
+	printf("Alice fails to process Bob's step 3b\n");
+	ERR_print_errors_fp(stdout);
+	return 6;
+	}
+    JPAKE_STEP3B_release(&bob_s3b);
+
+    return 0;
+    }
+
+int main(int argc, char **argv)
+    {
+    JPAKE_CTX *alice;
+    JPAKE_CTX *bob;
+    BIGNUM *p = NULL;
+    BIGNUM *g = NULL;
+    BIGNUM *q = NULL;
+    BIGNUM *secret = BN_new();
+    BIO *bio_err;
+
+    bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
+
+    CRYPTO_malloc_debug_init();
+    CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
+    CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
+
+    ERR_load_crypto_strings();
+
+    /*
+    BN_hex2bn(&p, "fd7f53811d75122952df4a9c2eece4e7f611b7523cef4400c31e3f80b6512669455d402251fb593d8d58fabfc5f5ba30f6cb9b556cd7813b801d346ff26660b76b9950a5a49f9fe8047b1022c24fbba9d7feb7c61bf83b57e7c6a8a6150f04fb83f6d3c51ec3023554135a169132f675f3ae2b61d72aeff22203199dd14801c7");
+    BN_hex2bn(&g, "f7e1a085d69b3ddecbbcab5c36b857b97994afbbfa3aea82f9574c0b3d0782675159578ebad4594fe67107108180b449167123e84c281613b7cf09328cc8a6e13c167a8b547c8d28e0a3ae1e2bb3a675916ea37f0bfa213562f1fb627a01243bcca4f1bea8519089a883dfe15ae59f06928b665e807b552564014c3bfecf492a");
+    BN_hex2bn(&q, "9760508f15230bccb292b982a2eb840bf0581cf5");
+    */
+    /*
+    p = BN_new();
+    BN_generate_prime(p, 1024, 1, NULL, NULL, NULL, NULL);
+    */
+   /* Use a safe prime for p (that we found earlier) */
+    BN_hex2bn(&p, "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
+    showbn("p", p);
+    g = BN_new();
+    BN_set_word(g, 2);
+    showbn("g", g);
+    q = BN_new();
+    BN_rshift1(q, p);
+    showbn("q", q);
+
+    BN_rand(secret, 32, -1, 0);
+
+   /* A normal run, expect this to work... */
+    alice = JPAKE_CTX_new("Alice", "Bob", p, g, q, secret);
+    bob = JPAKE_CTX_new("Bob", "Alice", p, g, q, secret);
+
+    if(run_jpake(alice, bob) != 0)
+	{
+	fprintf(stderr, "Plain JPAKE run failed\n");
+	return 1;
+	}
+
+    JPAKE_CTX_free(bob);
+    JPAKE_CTX_free(alice);
+
+   /* Now give Alice and Bob different secrets */
+    alice = JPAKE_CTX_new("Alice", "Bob", p, g, q, secret);
+    BN_add_word(secret, 1);
+    bob = JPAKE_CTX_new("Bob", "Alice", p, g, q, secret);
+
+    if(run_jpake(alice, bob) != 5)
+	{
+	fprintf(stderr, "Mismatched secret JPAKE run failed\n");
+	return 1;
+	}
+
+    JPAKE_CTX_free(bob);
+    JPAKE_CTX_free(alice);
+
+    BN_free(secret);
+    BN_free(q);
+    BN_free(g);
+    BN_free(p);
+
+    CRYPTO_cleanup_all_ex_data();
+    ERR_remove_thread_state(NULL);
+    ERR_free_strings();
+    CRYPTO_mem_leaks(bio_err);
+
+    return 0;
+    }
+
+#endif