publishFullContrib: true for ydb

<HIDDEN_URL>
commit_hash:c82a80ac4594723cebf2c7387dec9c60217f603e

1 files changed, 166 insertions, 0 deletions

diff --git a/contrib/python/cryptography/py2/_cffi_src/openssl/dh.py b/contrib/python/cryptography/py2/_cffi_src/openssl/dh.py
new file mode 100644
index 0000000000..947a5a8ee0
--- /dev/null
+++ b/contrib/python/cryptography/py2/_cffi_src/openssl/dh.py
@@ -0,0 +1,166 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import absolute_import, division, print_function
+
+INCLUDES = """
+#include <openssl/dh.h>
+"""
+
+TYPES = """
+typedef ... DH;
+
+const long DH_NOT_SUITABLE_GENERATOR;
+"""
+
+FUNCTIONS = """
+DH *DH_new(void);
+void DH_free(DH *);
+int DH_size(const DH *);
+int DH_generate_key(DH *);
+int DH_compute_key(unsigned char *, const BIGNUM *, DH *);
+DH *DHparams_dup(DH *);
+
+/* added in 1.1.0 when the DH struct was opaqued */
+void DH_get0_pqg(const DH *, const BIGNUM **, const BIGNUM **,
+                 const BIGNUM **);
+int DH_set0_pqg(DH *, BIGNUM *, BIGNUM *, BIGNUM *);
+void DH_get0_key(const DH *, const BIGNUM **, const BIGNUM **);
+int DH_set0_key(DH *, BIGNUM *, BIGNUM *);
+
+int Cryptography_DH_check(const DH *, int *);
+int DH_generate_parameters_ex(DH *, int, int, BN_GENCB *);
+DH *d2i_DHparams_bio(BIO *, DH **);
+int i2d_DHparams_bio(BIO *, DH *);
+DH *Cryptography_d2i_DHxparams_bio(BIO *bp, DH **x);
+int Cryptography_i2d_DHxparams_bio(BIO *bp, DH *x);
+"""
+
+CUSTOMIZATIONS = """
+#if CRYPTOGRAPHY_IS_LIBRESSL
+#ifndef DH_CHECK_Q_NOT_PRIME
+#define DH_CHECK_Q_NOT_PRIME            0x10
+#endif
+
+#ifndef DH_CHECK_INVALID_Q_VALUE
+#define DH_CHECK_INVALID_Q_VALUE        0x20
+#endif
+
+#ifndef DH_CHECK_INVALID_J_VALUE
+#define DH_CHECK_INVALID_J_VALUE        0x40
+#endif
+
+/* DH_check implementation taken from OpenSSL 1.1.0pre6 */
+
+/*-
+ * Check that p is a safe prime and
+ * if g is 2, 3 or 5, check that it is a suitable generator
+ * where
+ * for 2, p mod 24 == 11
+ * for 3, p mod 12 == 5
+ * for 5, p mod 10 == 3 or 7
+ * should hold.
+ */
+
+int Cryptography_DH_check(const DH *dh, int *ret)
+{
+    int ok = 0, r;
+    BN_CTX *ctx = NULL;
+    BN_ULONG l;
+    BIGNUM *t1 = NULL, *t2 = NULL;
+
+    *ret = 0;
+    ctx = BN_CTX_new();
+    if (ctx == NULL)
+        goto err;
+    BN_CTX_start(ctx);
+    t1 = BN_CTX_get(ctx);
+    if (t1 == NULL)
+        goto err;
+    t2 = BN_CTX_get(ctx);
+    if (t2 == NULL)
+        goto err;
+
+    if (dh->q) {
+        if (BN_cmp(dh->g, BN_value_one()) <= 0)
+            *ret |= DH_NOT_SUITABLE_GENERATOR;
+        else if (BN_cmp(dh->g, dh->p) >= 0)
+            *ret |= DH_NOT_SUITABLE_GENERATOR;
+        else {
+            /* Check g^q == 1 mod p */
+            if (!BN_mod_exp(t1, dh->g, dh->q, dh->p, ctx))
+                goto err;
+            if (!BN_is_one(t1))
+                *ret |= DH_NOT_SUITABLE_GENERATOR;
+        }
+        r = BN_is_prime_ex(dh->q, BN_prime_checks, ctx, NULL);
+        if (r < 0)
+            goto err;
+        if (!r)
+            *ret |= DH_CHECK_Q_NOT_PRIME;
+        /* Check p == 1 mod q  i.e. q divides p - 1 */
+        if (!BN_div(t1, t2, dh->p, dh->q, ctx))
+            goto err;
+        if (!BN_is_one(t2))
+            *ret |= DH_CHECK_INVALID_Q_VALUE;
+        if (dh->j && BN_cmp(dh->j, t1))
+            *ret |= DH_CHECK_INVALID_J_VALUE;
+
+    } else if (BN_is_word(dh->g, DH_GENERATOR_2)) {
+        l = BN_mod_word(dh->p, 24);
+        if (l == (BN_ULONG)-1)
+            goto err;
+        if (l != 11)
+            *ret |= DH_NOT_SUITABLE_GENERATOR;
+    } else if (BN_is_word(dh->g, DH_GENERATOR_5)) {
+        l = BN_mod_word(dh->p, 10);
+        if (l == (BN_ULONG)-1)
+            goto err;
+        if ((l != 3) && (l != 7))
+            *ret |= DH_NOT_SUITABLE_GENERATOR;
+    } else
+        *ret |= DH_UNABLE_TO_CHECK_GENERATOR;
+
+    r = BN_is_prime_ex(dh->p, BN_prime_checks, ctx, NULL);
+    if (r < 0)
+        goto err;
+    if (!r)
+        *ret |= DH_CHECK_P_NOT_PRIME;
+    else if (!dh->q) {
+        if (!BN_rshift1(t1, dh->p))
+            goto err;
+        r = BN_is_prime_ex(t1, BN_prime_checks, ctx, NULL);
+        if (r < 0)
+            goto err;
+        if (!r)
+            *ret |= DH_CHECK_P_NOT_SAFE_PRIME;
+    }
+    ok = 1;
+ err:
+    if (ctx != NULL) {
+        BN_CTX_end(ctx);
+        BN_CTX_free(ctx);
+    }
+    return (ok);
+}
+#else
+int Cryptography_DH_check(const DH *dh, int *ret) {
+    return DH_check(dh, ret);
+}
+#endif
+
+/* These functions were added in OpenSSL 1.1.0f commit d0c50e80a8 */
+/* Define our own to simplify support across all versions. */
+#if defined(EVP_PKEY_DHX) && EVP_PKEY_DHX != -1
+DH *Cryptography_d2i_DHxparams_bio(BIO *bp, DH **x) {
+    return ASN1_d2i_bio_of(DH, DH_new, d2i_DHxparams, bp, x);
+}
+int Cryptography_i2d_DHxparams_bio(BIO *bp, DH *x) {
+    return ASN1_i2d_bio_of_const(DH, i2d_DHxparams, bp, x);
+}
+#else
+DH *(*Cryptography_d2i_DHxparams_bio)(BIO *bp, DH **x) = NULL;
+int (*Cryptography_i2d_DHxparams_bio)(BIO *bp, DH *x) = NULL;
+#endif
+"""