diff options
Diffstat (limited to '')
| -rw-r--r-- | kbx/backend-support.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kbx/backend-support.c b/kbx/backend-support.c index 7ab63985c..4d3738064 100644 --- a/kbx/backend-support.c +++ b/kbx/backend-support.c @@ -207,6 +207,7 @@ be_is_x509_blob (const unsigned char *blob, size_t bloblen) * SEQUENCE SEQUENCE [0] INTEGER INTEGER * (tbs) (version) (s/n) * + * Note that v0 certificates don't have an explict version number. */ p = blob; @@ -226,7 +227,11 @@ be_is_x509_blob (const unsigned char *blob, size_t bloblen) if (parse_ber_header (&p, &n, &class, &tag, &cons, &ndef, &objlen, &hdrlen)) return 0; /* Not a proper BER object. */ if (!(class == CLASS_CONTEXT && tag == 0 && cons)) - return 0; /* No context tag. */ + { + if (class == CLASS_UNIVERSAL && tag == TAG_INTEGER && !cons) + return 1; /* Might be a X.509 v0 cert with implict version. */ + return 0; /* No context tag. */ + } if (parse_ber_header (&p, &n, &class, &tag, &cons, &ndef, &objlen, &hdrlen)) return 0; /* Not a proper BER object. */ |