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authorRadu Alexe <radu.alexe@nxp.com>2017-04-25 16:26:38 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-05-18 13:19:51 +0800
commit52e26d77b8b3de2e9ed6c7126f68e04cad5fe852 (patch)
tree70ed663f25389bc078e9171f28264da56a88a5ed /net/atm
parent7ca4a9a10fe82ee50ce0da02c72791ecf7c83869 (diff)
crypto: caam - add support for RSA key form 2
CAAM RSA private key may have either of three representations. 1. The first representation consists of the pair (n, d), where the components have the following meanings: n the RSA modulus d the RSA private exponent 2. The second representation consists of the triplet (p, q, d), where the components have the following meanings: p the first prime factor of the RSA modulus n q the second prime factor of the RSA modulus n d the RSA private exponent 3. The third representation consists of the quintuple (p, q, dP, dQ, qInv), where the components have the following meanings: p the first prime factor of the RSA modulus n q the second prime factor of the RSA modulus n dP the first factors's CRT exponent dQ the second factors's CRT exponent qInv the (first) CRT coefficient The benefit of using the third or the second key form is lower computational cost for the decryption and signature operations. This patch adds support for the second RSA private key representation. Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com> Signed-off-by: Radu Alexe <radu.alexe@nxp.com> Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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