Each Lamport key can only be used to sign a single message, but combined with hash trees they can be used for many messages, becoming a fairly efficient digital signature scheme known as a Merkle signature scheme.
Each Lamport key can only be used to sign a single message. They can be used for many messages. This was combined with hash trees. They was becoming a fairly efficient digital signature scheme known as a Merkle signature scheme. This was combined with hash trees.