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26 lines
795 B
Plaintext
26 lines
795 B
Plaintext
--- rsaglue.c.orig Tue Nov 9 11:12:32 1999
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+++ rsaglue.c Tue Nov 9 11:17:58 1999
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@@ -139,6 +139,10 @@
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input_bits = mpz_sizeinbase(input, 2);
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input_len = (input_bits + 7) / 8;
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+ if(input_bits > MAX_RSA_MODULUS_BITS)
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+ fatal("Attempted to encrypt a block too large (%d bits, %d max) (malicious?).",
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+ input_bits, MAX_RSA_MODULUS_BITS);
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+
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gmp_to_rsaref(input_data, input_len, input);
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rsaref_public_key(&public_key, key);
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@@ -172,6 +176,10 @@
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input_bits = mpz_sizeinbase(input, 2);
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input_len = (input_bits + 7) / 8;
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+ if(input_bits > MAX_RSA_MODULUS_BITS)
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+ fatal("Received session key too long (%d bits, %d max) (malicious?).",
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+ input_bits, MAX_RSA_MODULUS_BITS);
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+
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gmp_to_rsaref(input_data, input_len, input);
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rsaref_private_key(&private_key, key);
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