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So What Are dQ, dP, and InvQ Used For In RSA?

If you look at a private key in RSA, you will see p and q — the core prime numbers, and the modulus N (and which is p times q). But you will also see dQ, dP and InvQ. Overall, they make the decryption process faster and use Chinese Remainer Theorem.

Chinese Remainder Theorem (CRT) and RSA