CERTUTIL encode/decode

Certutil tasks for encoding and decoding certificates.

CERTUTIL [-encode] [/?]

To encode a certificate as a base64 file:
To encode a DER-encoded request to a base64-encoded request:
CERTUTIL -encode [-f] [-v] input_file output_file

To decode a base64-encoded certificate:
To decode a base64-encoded request to a DER-encoded request:
CERTUTIL -decode [-f] [-v] input_file output_file

To encode a certificate as a hexadecimal file:
CERTUTIL -encodehex [-f] [-v] input_file output_file

To decode a hexadecimal-encoded file:
CERTUTIL -decodehex [-f] [-v] input_file output_file.DER

input_file (NT2003)

Specifies the certificate that you want to encode as a base64/hexadecimal file.

Specifies the base64-encoded request (.REQ extesion) file that you want to decode.

Specifies the DER-encoded request (.DER extension), which is compatible with Entrust, that you want to decode.

output_file (NT2003)

Specifies the base64-encoded/hexadecimal file to which you want to send the certificate information.

Specifies the base64-encoded request (.REQ extesion) file that you want to create.

Specifies the DER-encoded request (.DER extension), which is compatible with Entrust, that you want to create.

/? (NT2003)

Display help.

-decode (NT2003)

Decodes a base64-encoded file.

-decodehex (NT2003)

Decodes a hexadecimal-encoded file.

-encode (NT2003)

Encodes a certificate as a base64 file.

-encodehex (NT2003)

Encodes a certificate as a hexadecimal file.

-f (NT2003)

Overwrites existing files or keys.

-v (NT2003)

Specifies verbose output.

CERTUTIL backup/restore
CERTUTIL configure
CERTUTIL certificates
CERTUTIL CRLs
CERTUTIL manage
CERTUTIL archival/recovery
CERTUTIL troubleshooting

none.

none.

none.

External

DOS

none

Windows

none

Windows NT

NT2003