powershell - Converting base64 string to X509 certifcate -


can please me following question. use powershell , far have figured out how take x509 certificate flat file e.g. cert.cer , concert base64 string storage (e.g. in database string etc.) , convert again system.security.cryptography.x509certificates.x509certificate2 object

see code below far

$certifcatefilefullpath = "c:\temp\cert.cer" $cert = new-object security.cryptography.x509certificates.x509certificate2 -argumentlist $certifcatefilefullpath  $obj2 = [system.convert]::tobase64string($cert.rawdata)  $obj3 = [system.security.cryptography.x509certificates.x509certificate2]([system.convert]::frombase64string($obj2))

now thing want write object $obj3 file system flat file (e.g. cert.cer) readable/usable original certificate. if use | out-file c:\temp2\cert.cer etc... file bigger original file , not readable (e.g. not open normal cert file). assume encoding issue when writing out object file system (i believe cert files asn 1 encode binary files)

can me achieve please, in advance.

e brant

the problem pewrshell unicode default, while cryptoapi decoder expects ascii encoding (where each character encoded using 1 byte). achieve this, add -encoding ascii paramter out-file cmdlet.

btw, there no need store certificate file in binary format. cryptoapi supports certificate files in base64 format. since .net relies on cryptoapi, there not comatibility problems.


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