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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 third RSA private key
representations and extends caampkc to use the fastest key when all
related components are present in the private key.
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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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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Add RSA support to caam driver.
Initial author is Yashpal Dutta <yashpal.dutta@freescale.com>.
Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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There are SoCs like LS1043A where CAAM endianness (BE) does not match
the default endianness of the core (LE).
Moreover, there are requirements for the driver to handle cases like
CPU_BIG_ENDIAN=y on ARM-based SoCs.
This requires for a complete rewrite of the I/O accessors.
PPC-specific accessors - {in,out}_{le,be}XX - are replaced with
generic ones - io{read,write}[be]XX.
Endianness is detected dynamically (at runtime) to allow for
multiplatform kernels, for e.g. running the same kernel image
on LS1043A (BE CAAM) and LS2080A (LE CAAM) armv8-based SoCs.
While here: debugfs entries need to take into consideration the
endianness of the core when displaying data. Add the necessary
glue code so the entries remain the same, but they are properly
read, regardless of the core and/or SEC endianness.
Note: pdb.h fixes only what is currently being used (IPsec).
Reviewed-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Alex Porosanu <alexandru.porosanu@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add define for "Adjust Output Frame Length" in order to
set the AOFL bit in the IPsec ESP Decapsulation PDB.
Signed-off-by: Anca-Jeanina Floarea <anca.floarea@freescale.com>
Signed-off-by: Andrei Varvara <andrei.varvara@freescale.com>
Reviewed-by: Phillips Kim-R1AAHA <Kim.Phillips@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add a PDB header file to support building protocol descriptors.
Signed-off-by: Steve Cornelius <sec@pobox.com>
Signed-off-by: Hemant Agrawal <hemant@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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