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5.6 Representation of certificates

All certificates must be X.509 certificates [X509] (an alternative and more accessible description of the information in X.509 can be found in RFC 2459 [RFC2459]).

Certificates are represented in their Distinguished Encoding Rules (DER) encoded form specified in the ASN.1 Basic Encoding Rules [X690]. An introduction to this form can be found in RFC 2459. Note that the certificates must NOT be represented in an encrypted form such as those defined in PKCS #7 (also known as a '.p78' form), or PKCS #12 (also known as a '.pfx' or '.p12' form). The private key of the signer must never be contained in the VEO.

The DER encoding is a binary form, so each certificate must be encoded into Base64 [Base64]

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