|
SubFilter value |
||
---|---|---|---|
|
adbe.pkcs7.detached |
adbe.pkcs7.sha1 |
adbe.x509.rsa.sha1 a |
Message Digest |
SHA1 (PDF 1.3) SHA256 (PDF 1.6) SHA384 (PDF 1.7) SHA512 (PDF 1.7) RIPEMD160 (PDF 1.7) |
SHA1 (PDF 1.3) b |
SHA1 (PDF 1.3) SHA256 (PDF 1.6) SHA384 (PDF 1.7) SHA512 (PDF 1.7) RIPEMD160 (PDF 1.7) |
RSA Algorithm Support |
Up to 1024-bit (PDF 1.3) Up to 2048-bit (PDF 1.5) Up to 4096-bit (PDF 1.5) |
See adbe.pkcs7.detached |
See adbe.pkcs7.detached |
DSA Algorithm Support |
Up to 4096-bits (PDF 1.6) |
See adbe.pkcs7.detached |
No |
a Despite the appearance of sha1 in the name of this SubFilter value, supported encodings shall not be limited to the SHA1 algorithm. The PKCS1 object contains an identifier that indicates which al gorithm shall be used. b Other digest algorithms may be used to digest the signed-data field; however, SHA1 shall be used to digest the data that is being signed. |