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Tobias Frauenschläger
3b663585ea
wc_Chacha_Process validated only its pointer arguments and then produced keystream directly from the context state. A zero-initialized ChaCha context, common for static or global storage, that received a nonce via wc_Chacha_SetIV but never had wc_Chacha_SetKey called would encrypt with an all-zero, attacker-predictable key and still return success. This is the same fail-open class already guarded against in wc_Arc4Process. Add a keySet flag to the ChaCha struct, set it in wc_Chacha_SetKey, and return MISSING_KEY from wc_Chacha_Process when the key was never set. Fixes F-6893.
49 lines
2.0 KiB
C
49 lines
2.0 KiB
C
/* test_chacha.h
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*
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* Copyright (C) 2006-2026 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef WOLFCRYPT_TEST_CHACHA_H
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#define WOLFCRYPT_TEST_CHACHA_H
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#include <tests/api/api_decl.h>
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int test_wc_Chacha_SetKey(void);
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int test_wc_Chacha_Process(void);
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int test_wc_Chacha_Process_Chunking(void);
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int test_wc_Chacha_MonteCarlo(void);
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int test_wc_Chacha_CounterOverflow(void);
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int test_wc_Chacha_InPlace(void);
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int test_wc_Chacha_UnalignedBuffers(void);
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int test_wc_Chacha_XChachaSetKey(void);
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int test_wc_Chacha_MissingKey(void);
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#define TEST_CHACHA_DECLS \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_SetKey), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_Process), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_Process_Chunking), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_MonteCarlo), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_CounterOverflow), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_InPlace), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_UnalignedBuffers), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_XChachaSetKey), \
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TEST_DECL_GROUP("chacha", test_wc_Chacha_MissingKey)
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#endif /* WOLFCRYPT_TEST_CHACHA_H */
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