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rename dont_ignore to in_padding

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-09-20 19:07:22 +01:00
parent e834d6c9f2
commit c43a0a4adb
1 changed files with 3 additions and 3 deletions
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6
library/cipher.c
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@ -865,9 +865,9 @@ static int get_pkcs_padding(unsigned char *input, size_t input_len,
* so pick input_len, which is usually 8 or 16 (one block) */ * so pick input_len, which is usually 8 or 16 (one block) */
pad_idx = input_len - padding_len; pad_idx = input_len - padding_len;
for (i = 0; i < input_len; i++) { for (i = 0; i < input_len; i++) {
mbedtls_ct_condition_t dont_ignore = mbedtls_ct_uint_ge(i, pad_idx); mbedtls_ct_condition_t in_padding = mbedtls_ct_uint_ge(i, pad_idx);
mbedtls_ct_condition_t different = mbedtls_ct_uint_ne(input[i], padding_len); mbedtls_ct_condition_t different = mbedtls_ct_uint_ne(input[i], padding_len);
bad = mbedtls_ct_bool_or(bad, mbedtls_ct_bool_and(dont_ignore, different)); bad = mbedtls_ct_bool_or(bad, mbedtls_ct_bool_and(in_padding, different));
} }
return mbedtls_ct_uint_if_else_0(bad, MBEDTLS_ERR_CIPHER_INVALID_PADDING); return mbedtls_ct_uint_if_else_0(bad, MBEDTLS_ERR_CIPHER_INVALID_PADDING);