Key escrow definition
Key escrow means a procedure for storing copies of cryptographic keys with one or more separate parties, ensuring the segregation of duties, to enable their recovery in case the operational copy is lost. Keys may be split into two or more parts, each of which is lodged with a different party to ensure that no single party possesses the entire key.
Key escrow. The key escrow property in the certificateless key agreement protocols means that the Key Generation Center (KGC) who has the part of the users' private key cannot obtain session keys established between the users. In the proposed scheme the session keys are made only using random numbers, so KGC cannot obtain these keys whereas he knows the part of the users' private key.
Key escrow. The key escrow property in the certificateless key agreement protocols means that the Key Generation Center (KGC) who has the part of the users' private key cannot obtain session keys established between the users. In the proposed scheme the session keys are made only using random numbers, so KGC cannot obtain these keys whereas he knows the part of the users' private key. The computations of the proposed protocol for every entity are shown in the Table 3. Our protocol is designed to establish n 2 session keys for n random numbers. Step for n Random Numbers for 2 Random Numbers Computations of T( A or ▇)▇,▇ ▇ ▇ ▇▇ ▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇ ▇▇ or B (2n)M + 2A + 3S 4M + 2A + 3S Verification M + (n + 1)A + (n + 2)S + 2P 1M + 3A + 4S + 2P Key computations (n2)S 4S Shared session keys n2 4 Total Computations (2n + 1)M + (n + 3)A + (n2 + 2n + 5)S + 2P 5M + 5A + 13S + 2P M: Modular Multiplication, A,S: Point Addition and Scalar Multiplication on an elliptic curve respectively, P: Pairing computation.
Examples of Key escrow in a sentence
Key escrow is an essential in situations where confidentiality and audit trail are legal requirement.
Key escrow elimination protects entities against a mali- cious third party, as the third party only holds a portion of users’ secret keys.