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Use CCMMessageTooLongError exception for all cases

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This commit is contained in:
Helder Eijs 2025-03-16 15:17:14 +01:00
parent 84a395ab77
commit 215a151ecc
1 changed files with 6 additions and 2 deletions
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8
lib/Crypto/Cipher/_mode_ccm.py
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@ -373,7 +373,9 @@ class CcmMode(object):
self._cumul_msg_len += len(plaintext)
if self._cumul_msg_len > self._msg_len:
raise ValueError("Message is too long")
msg = "Message longer than declared for (%u bytes vs %u bytes" % \
(self._cumul_msg_len, self._msg_len)
raise CCMMessageTooLongError(msg)
if self._mac_status == MacStatus.PROCESSING_AUTH_DATA:
# Associated data is concatenated with the least number
@ -450,7 +452,9 @@ class CcmMode(object):
self._cumul_msg_len += len(ciphertext)
if self._cumul_msg_len > self._msg_len:
raise ValueError("Message is too long")
msg = "Message longer than declared for (%u bytes vs %u bytes" % \
(self._cumul_msg_len, self._msg_len)
raise CCMMessageTooLongError(msg)
if self._mac_status == MacStatus.PROCESSING_AUTH_DATA:
# Associated data is concatenated with the least number