Download
PSgChkTl-1.01.zip (70K) a zipped hfs disk image and checksum file. The disk image can be mounted with Mini vMac. Includes source code.
PSgChkTl is a command line version of PSgCheck. It can be used in Macintosh Programmer’s Workshop to automate checking digital signatures in MacPGP format. It is written to be platform independent, using the C standard library, and would probably be easy to port to other platforms (but that is not supported).
It takes two arguments: First, a path to a file containing a signed message. And second, a path to a file containing a public key, in ascii armored format.
If the signature is correctly signed, PSgChkTl will return a zero result ("{status}" in MPW). Otherwise the result will be non-zero.
PSgChkTl is in part descended from MacPGP source code, which, as far as I can tell, allows derived works for noncommercial use.
Here is the md5 checksum for the download, signed with Gryphel Key 5:
--------- GRY SIGNED TEXT --------- 619f66c2e6aa20bc1a996b35e3c662ab PSgChkTl-1.01.zip ------- BEGIN GRY SIGNATURE ------- Gry/4Xa8CFcUzxdN/C144FRwrUWDsAm4foX3HOd4Fs4BF8uyzDksfn7dO3RPvk3T PB8u5Z0hJkUQQYA4Pdg7G69amjF4oMtjK+1XPspxlSg8aa+8Gbww00SeFwbJDvnH f6k2UEr7Ulet1iEelRmPkedX8K/zoiSzoENpUA76C+ii92JNym9UH+MU4xQNVDnI -------- END GRY SIGNATURE --------
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If you find PSgChkTl useful, please consider helping the Gryphel Project, of which it is a part.