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The security of any public key cryptosystem depends on the private key thus, it is important that only an authorized person can have access to the private key. The paper presents a new algorithm that protects the private key using the transposition cipher technique. The performance of the proposed technique is evaluated by applying it in the RSA algorithm’s generated private keys using 512-bit, 1024-bit, and 2048-bit, respectively. The result shows that the technique is practical and efficient in securing private keys while in storage as it produced high avalanche effect. |
