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File _service:download_src_package:openssl-1.0.2a-cc-reqs.patch of Package openssl102 (Revision ea83a9b8b52fb1dd698d2659366c7465)

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diff -up openssl-1.0.2a/crypto/rsa/rsa_gen.c.cc-reqs openssl-1.0.2a/crypto/rsa/rsa_gen.c
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--- openssl-1.0.2a/crypto/rsa/rsa_gen.c.cc-reqs 2015-04-09 18:22:58.638448432 +0200
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+++ openssl-1.0.2a/crypto/rsa/rsa_gen.c 2015-04-09 18:22:57.264416692 +0200
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@@ -474,6 +474,12 @@ static int rsa_builtin_keygen(RSA *rsa,
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     if (!rsa->iqmp && ((rsa->iqmp = BN_new()) == NULL))
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         goto err;
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+    /* prepare minimum p and q difference */
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+    if (!BN_one(r3))
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+        goto err;
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+    if (bitsp > 100 && !BN_lshift(r3, r3, bitsp - 100))
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+        goto err;
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+
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     BN_copy(rsa->e, e_value);
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     /* generate p and q */
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@@ -501,7 +507,9 @@ static int rsa_builtin_keygen(RSA *rsa,
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         do {
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             if (!BN_generate_prime_ex(rsa->q, bitsq, 0, NULL, NULL, cb))
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                 goto err;
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-        } while ((BN_cmp(rsa->p, rsa->q) == 0) && (++degenerate < 3));
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+            if (!BN_sub(r2, rsa->q, rsa->p))
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+                goto err;
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+        } while ((BN_ucmp(r2, r3) <= 0) && (++degenerate < 3));
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         if (degenerate == 3) {
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             ok = 0;             /* we set our own err */
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             RSAerr(RSA_F_RSA_BUILTIN_KEYGEN, RSA_R_KEY_SIZE_TOO_SMALL);
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