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m32
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Dec 15, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,60 @@ | ||
| #!/usr/bin/env python3 | ||
| import sys | ||
| from endesive.pdf import PDFVerifier | ||
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| def main(): | ||
| trustedcerts = [] | ||
| with open("nccert2016.crt", "rb") as fp: | ||
| trustedcerts.append(fp.read()) | ||
| with open("ca/demo2_ca.crt.pem", "rb") as fp: | ||
| trustedcerts.append(fp.read()) | ||
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| if len(sys.argv) > 1: | ||
| fname = sys.argv[1] | ||
| else: | ||
| fname = "pdf-signed-cms-m32-unizeto.pdf" | ||
| with open(fname, "rb") as fp: | ||
| pdf_data = fp.read() | ||
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| v = PDFVerifier(pdf_data, trustedcerts, "/etc/ssl/certs") | ||
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| if not v.is_valid_pdf(): | ||
| print(f"{fname} is not a pdf file") | ||
| return | ||
|
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| if not v.is_signed(): | ||
| if v.modified: | ||
| print(f"file {fname} is modified") | ||
| else: | ||
| print(f"file {fname} is unsigned") | ||
| if not v.whole_file: | ||
| print("the signature does not cover the entire pdf file") | ||
| return | ||
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| (signed_data, tspdata, crldata, cert, othercerts, hashok, signatureok) = v.decompose_signature() | ||
| if not hashok or not signatureok: | ||
| print(f"file {fname} is modified") | ||
| return | ||
|
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| certok = v.validate_certificate(cert, othercerts) | ||
| if not certok: | ||
| print(f"signing certificate is invalid") | ||
| return | ||
|
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| print(f"signed with cert serial_number: {cert['tbs_certificate']['serial_number'].native}") | ||
| print("other certificates:") | ||
| for ocert in othercerts: | ||
| print(f" serial_number: {ocert['tbs_certificate']['serial_number'].native}") | ||
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| if crldata.native is not None: | ||
| ok, info = v.verify_ocsp_data(cert, othercerts, crldata) | ||
| if ok: | ||
| print(f'ocsp issued at: {info[0]}, next check at: {info[1]}') | ||
|
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| if tspdata is not None: | ||
| ok, info = v.verify_tsp_data(signed_data, tspdata, othercerts) | ||
| print(f'tsp issued at: {info}') | ||
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| if __name__ == '__main__': | ||
| main() |