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PDF Signature With Timestamp Embedded Showing Invalid

New Here ,
Aug 06, 2020

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We are trying to embed Timestamp signature as a unsigned attribute in CMS format but after stamping signature in PDF, PDF viewer giving the signature includes an embeded timestamp but it is invalid message.

 

We have used internal TSA service (self sigined) TSA and bouncy castle API for crypto and signing operations. But don't know what is happening with pdf. Could anyone know why pdf giving this message. Find attached hello_signed.pdf file.

 

Please help to fix this issue.

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Security digital signatures and esignatures

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PDF Signature With Timestamp Embedded Showing Invalid

New Here ,
Aug 06, 2020

Copy link to clipboard

Copied

We are trying to embed Timestamp signature as a unsigned attribute in CMS format but after stamping signature in PDF, PDF viewer giving the signature includes an embeded timestamp but it is invalid message.

 

We have used internal TSA service (self sigined) TSA and bouncy castle API for crypto and signing operations. But don't know what is happening with pdf. Could anyone know why pdf giving this message. Find attached hello_signed.pdf file.

 

Please help to fix this issue.

Topics

Security digital signatures and esignatures

Views

35

Likes

Translate

Translate

Report

Report
Community Guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
Aug 06, 2020 0

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