phytoremediation. The use of trees to take up chemicals, binding some of the material in an inert form with the tree, and converting some of it to other substances, possibly even breaking it down into the normal end product of a tree's chemical processes.pinnate.hytoremediation. The use of trees to take up chemicals, binding some of the material in an inert form with the tree, and converting some of it to other substances, possibly even breaking it down into the normal end product of a tree's chemical processes.
Electronic signatures, or e-signatures, refer broadly to any electronic process that indicates acceptance of an agreement or a record. The term digital signature is frequently used to refer to one specific type of electronic signature. 1  Typical e-signature solutions use common electronic authentication methods to verify signer identity, such as email, corporate IDs, or a phone PIN. 2  Digital signatures use a specific type of electronic signature.
To save time, digital signature protocols use a Cryptographic Digest, which is a one-way hash of the document. The hash is signed instead of the document itself. Both the hashing and digital signature algorithms are agreed upon beforehand. Here is a summary of the process: 1  A one-way hash of the document is produced. 2  The hash is encrypted with the private key, thereby signing the document. 3  The document and the signed hash are transmitted.