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crypto: properly initialize key and iv to 0, add comment regarding the size of IV
- properly initialize key and iv to 0, otherwise invalid data might be printed
- the initialization vector for AES will be always AES blocksize, e.g. 128 bits
Henning Westerholt authored on 09/11/2020 12:52:07
Showing 1 changed files
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@@ -76,7 +76,9 @@ int crypto_aes_init(unsigned char *key_data, int key_data_len, |
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{
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int i, nrounds = 5; |
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int x; |
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- unsigned char key[32], iv[32]; |
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+ unsigned char key[32], iv[32]; /* IV is only 16 bytes, but makes it easier */ |
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+ memset(key, 0, sizeof(key)); |
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+ memset(iv, 0, sizeof(iv)); |
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/* |
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* Gen key & IV for AES 256 CBC mode. A SHA1 digest is used to hash |