Getting signature algorithm of signed certificates

[Yves10001]

I'm trying to get the signature algorithm of signed certificates. The goal is to get a list of certificates that have been signed with sha1 before the sha256 migration of your PKI.

using Get-IssuedRequest -Property * I'm not able to get the signature algorithm

is there another way to get the signature algorithm? or I am doing something wrong?

thanks

[Crypt32]

You can try this way:

Get-IssuedRequest -ca $ca -Property "RawCertificate" | %{
    $bytes = [convert]::FromBase64String($_.Properties["RawCertificate"])
    $cert = new-object security.cryptography.x509certificates.x509certificate2 (,$bytes)
    Write-Host "$request: $($_.RowID), algorithm: $($cert.SignatureAlgorithm)"
}

[Yves10001]

thanks a lot for your instructions, i had to do a little tweak but now it's working like that:
Get-IssuedRequest -ca $ca -Property "RawCertificate" | %{ $bytes = [convert]::FromBase64String($_.Properties["RawCertificate"]) $cert = new-object security.cryptography.x509certificates.x509certificate2 (,$bytes) Write-Host "$request $($_.RowID), algorithm: $($cert.SignatureAlgorithm.FriendlyName)" }