<Verifying signature from .ps7 file (PKCS#7/CMS) i...

# stackoverflow

[user]

Verifying signature from .ps7 file (PKCS#7/CMS) in Kotlin
I have a file fileA.json.p7s and I'm trying to validate the detached signature using Bouncy Castle.
However, the code fails on verification and returns the error:


org.bouncycastle.cms.CMSSignerDigestMismatchException: message-digest attribute value does not match calculated value



Does anyone know how to fix this error?
Here is my code:


fun verifySignature(): Boolean {
val signatureContent = File("src/test/resources/fileA.json.p7s").readBytes()
val cmsSignedData...