Method for authentication

A method for authentication of a first party (A) to a second party (B), via a trusted third party (C), the first party being registered at the trusted third party, which method at the first party comprises the steps of:

• transmitting identification data of said first party to the trusted third party;
• receiving a temporary random private key from the trusted third party, said random private key and a random open key forming a single use temporary master authentication code;
• and
• transmitting said random private key to the second party, said first party being authenticated to said second party in case of match between said random private key and a random open key held at the second party and a valid single use temporary master authentication code at the third party.

A system for authentication of a first party (A) to a second party (B), by a trusted third party (C), the first party being registered at the trusted third party, comprising:

• means for determining, based on identification data received form the first party, if said first party has the right to request a random private key;
• a key generator generating a temporary random private key, said random private key and a random open key in combination forming a single use temporary master authentication code;
• means for transmitting said random private key to said first party;
• means for determining, upon receipt of the random private key and the random open key from the second party, if said received random private key and random open key matches a valid single use temporary master authentication code;
• and
• means for authenticating, in case of match, said first party to said second party.

A system for authentication of a first party (A) to a second party (B), via a trusted third party (C), the first party being registered at the trusted third party, wherein the first party comprises:

• means for transmitting identification data of said first party to the trusted third party;
• means for receiving a temporary random private key from the trusted third party, said random private key and a random open key forming a single use temporary master authentication code;
• and
• means for transmitting said random private key to the second party, said first party being authenticated to said second party in case of match between said random private key and a random open key held at a second party and a valid single use temporary master authentication code at the third party.