fun getSignatureTimestamps()

in jvm/src/main/kotlin/com/jetbrains/signatureverifier/bouncycastle/tsp/TSPUtil.kt [81:114]

• 34 lines of code
• 7 McCabe index (conditional complexity)

  fun getSignatureTimestamps(signerInfo: SignerInformation, digCalcProvider: DigestCalculatorProvider): Collection<*> {
    val timestamps = mutableListOf<TimeStampToken>()
    val unsignedAttrs = signerInfo.unsignedAttributes
    if (unsignedAttrs != null) {
      val allTSAttrs = unsignedAttrs.getAll(
        PKCSObjectIdentifiers.id_aa_signatureTimeStampToken
      )
      for (i in 0 until allTSAttrs.size()) {
        val tsAttr = allTSAttrs[i] as Attribute
        val tsAttrValues = tsAttr.attrValues
        for (j in 0 until tsAttrValues.size()) {
          try {
            val contentInfo = ContentInfo.getInstance(tsAttrValues.getObjectAt(j))
            val timeStampToken = TimeStampToken(contentInfo)
            val tstInfo = timeStampToken.timeStampInfo
            val digCalc = digCalcProvider[tstInfo.hashAlgorithm]
            val dOut = digCalc.outputStream
            dOut.write(signerInfo.signature)
            dOut.close()
            val expectedDigest = digCalc.digest
            if (!Arrays.constantTimeAreEqual(expectedDigest, tstInfo.messageImprintDigest)) {
              throw TSPValidationException("Incorrect digest in message imprint")
            }
            timestamps.add(timeStampToken)
          } catch (e: OperatorCreationException) {
            throw TSPValidationException("Unknown hash algorithm specified in timestamp")
          } catch (e: Exception) {
            throw TSPValidationException("Timestamp could not be parsed")
          }
        }
      }
    }
    return timestamps
  }