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Initialize RSA context in RSA test suite before first potentially failing operation
The function `rsa_gen_key` from `test_suite_rsa.function` initialized a stack allocated RSA context only after seeding the CTR DRBG. If the latter operation failed, the cleanup code tried to free the uninitialized RSA context, potentially resulting in a segmentation fault. Fixes one aspect of #1023.
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@ -667,12 +667,12 @@ void rsa_gen_key( int nrbits, int exponent, int result)
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const char *pers = "test_suite_rsa";
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entropy_init( &entropy );
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rsa_init( &ctx, 0, 0 );
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TEST_ASSERT( ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
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(const unsigned char *) pers,
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strlen( pers ) ) == 0 );
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rsa_init( &ctx, 0, 0 );
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TEST_ASSERT( rsa_gen_key( &ctx, ctr_drbg_random, &ctr_drbg, nrbits,
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exponent ) == result );
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if( result == 0 )
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