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    • Sietse Ringers's avatar
      Improve scheme manager signing tool · 4b80f23e
      Sietse Ringers authored
    • Sietse Ringers's avatar
      Add scheme manager authenticity through ECDSA signatures · 3c2a5508
      Sietse Ringers authored
      Authenticity of the scheme manager files in the irma_configuration
      folder is now checked as follows.
      Each scheme manager must henceforth include three new files in its
      root folder: index, index.sig, and pk.pem. index lists all files
      under this manager as well as their SHA256-hash. index.sig is a
      ECDSA signature over index, signed with the private key corresponding
      to the public key pk.pem. Thus, a file under the scheme manager
      is authenticated if its hash matches the one in the index file,
      and if the signature over the index file is valid.
      Authenticity of all xml files, including the Idemix public keys,
      is verified in this way automatically when these files are loaded.
      For issuer and credential logos, use Configuration.ReadAuthenticatedFile.