diff options
Diffstat (limited to 'pyasn1/codec/cer/decoder.py')
| -rw-r--r-- | pyasn1/codec/cer/decoder.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/pyasn1/codec/cer/decoder.py b/pyasn1/codec/cer/decoder.py index 9fd37c1..1770cd8 100644 --- a/pyasn1/codec/cer/decoder.py +++ b/pyasn1/codec/cer/decoder.py @@ -9,8 +9,8 @@ class BooleanDecoder(decoder.AbstractSimpleDecoder): def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length, state, decodeFun, substrateFun): head, tail = substrate[:length], substrate[length:] - if not head: - raise error.PyAsn1Error('Empty substrate') + if not head or length != 1: + raise error.PyAsn1Error('Not single-octet Boolean payload') byte = oct2int(head[0]) # CER/DER specifies encoding of TRUE as 0xFF and FALSE as 0x0, while # BER allows any non-zero value as TRUE; cf. sections 8.2.2. and 11.1 @@ -20,7 +20,7 @@ class BooleanDecoder(decoder.AbstractSimpleDecoder): elif byte == 0x00: value = 0 else: - raise error.PyAsn1Error('Boolean CER violation: %s' % byte) + raise error.PyAsn1Error('Unexpected Boolean payload: %s' % byte) return self._createComponent(asn1Spec, tagSet, value), tail tagMap = decoder.tagMap.copy() |