Signing Certificate

Last Updated : Aug 30, 2026 |
Prolog information
Feature
Support
Notes
Import: RSA 1024-4096 key size
Yes
RSA 1024, 2048 and 4096 bit public keys must be supported. Any other sizes are optional.
Import of RSA public key less than 1024 or greater than 4096 bits to be rejected with an informative error.
Import: Must have private key
Yes
Must be supplied.
Reject and informative error that private key has not been supplied
Import: Certificate checks
Yes
Minimum checks for:
  • Version (v3)
  • Start + end (present)
  • Subject Name (present)
  • Issuer Name (present)
  • Data integrity (e.g. hash)
Reject and informative error if a check fails
Import: Certificate up to 4KB
Yes
Certificates can be varying sizes
Import: Formats
Yes
  • PKCS#12 format. ‘.p12’ and ‘.pfx’ file extension. With or without password. This shall be the preferred/default option
  • PEM format. ‘.cer’ ‘.pem’ and ‘.crt’ file extension.
  • Pasted from clipboard in PEM format (optional)
NOTE that ONLY PKCS#12 file format is acceptable according to 147434–030–P1, however we cannot control what format customers receive their certificates in, hence all should be supported
Import: Other certificates in same file
No
Informative warning that other certificates have not been imported
View: TCS Certificate
Yes
Minimum viewable attributes (From CEC016: 147434–030–P1):
  • Serial Number
  • Subject Name
  • Issuer Name
  • Validity Period (that includes notBefore and notAfter dates)
  • Thumbprint (Hash of the certificate)
  • Subject Alternative Names
  • Key Usage Extensions
  • Extended Key Usage
Warnings/errors as per 147434–080–P1:
  • Error displayed that certificate has expired
  • Warning displayed that certificate is nearing expiry (within 60 days).
Renew existing:
Yes
Regenerate CA keeping all keys and other contents same except:
  • notBefore and notAfter dates
  • Serial Number
  • Thumbprint (Hash of the certificate)
  • ??
Can this be done to imported CAs or just internally generated ones?
Create new:
Yes
Regenerate CA, including keys
Export: Formats
Yes
Private key must not be exportable
Export formats:
  • DER format. ‘.cer’ ‘.der’ and ‘.crt’ file extension.
  • PEM format. ‘.cer’ ‘.pem’ and ‘.crt’ file extension.
  • PKCS#12 (optional)