Abstract: Systems and methods include a user authenticated based at least in part on an on-device authentication mechanism to provide access to a passwordless secret key, and deriving a passwordless cryptographic signature using the passwordless secret key. a keyless account service signature over the passwordless cryptographic signature and a managing application identifier of a managing application is obtained from a keyless account service in response to an authentication request. A transaction is submitted to a blockchain, the transaction including: a passwordless signature associated with the passwordless cryptographic signature of the passwordless secret key, the cryptographic signature, transaction parameter, and a public key associated with the cryptographic signature, where the blockchain is configured to validate the transaction based at least in part on the signature associated with the passwordless cryptographic signature, the cryptographic signature, the transaction parameter and the public key.

Abstract: Disclosed are systems and methods for generating and utilizing wrapped cryptographic proofs in electronic communications and distributed ledger environments. A client device creates a first cryptographic proof comprising a public input and a first relation, configured to provide proof of a first secret statement based on transaction parameters. Upon verification, a second secret statement is generated, and a second cryptographic proof is obtained from an independent proving service, utilizing the same public input and a second relation to prove the second secret statement. The transaction, public input, and second cryptographic proof are submitted to a distributed ledger, enabling verifiers to confirm the authenticity of the first secret statement without exposing sensitive data.

Abstract: Systems and methods include receiving from a keyless account service, in response to an authentication request, a keyless account service signature including a cryptographic signature over a user identifier, a managing application identifier of a managing application, a nonce and to-be-revealed data, where the managing application manages activities by the user on a blockchain, and where the nonce is populated with a public key associated with the authentication request. An activity signature is generated for a particular activity based on the keyless account service signature and at least one to-be-revealed data field associated with the to-be-revealed data of the authentication request.