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-rw-r--r--libs/nixio/axTLS/ssl/BigIntConfig.in132
1 files changed, 0 insertions, 132 deletions
diff --git a/libs/nixio/axTLS/ssl/BigIntConfig.in b/libs/nixio/axTLS/ssl/BigIntConfig.in
deleted file mode 100644
index 04c7438c0..000000000
--- a/libs/nixio/axTLS/ssl/BigIntConfig.in
+++ /dev/null
@@ -1,132 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see scripts/config/Kconfig-language.txt
-#
-
-menu "BigInt Options"
- depends on !CONFIG_SSL_SKELETON_MODE
-
-choice
- prompt "Reduction Algorithm"
- default CONFIG_BIGINT_BARRETT
-
-config CONFIG_BIGINT_CLASSICAL
- bool "Classical"
- help
- Classical uses standard division. It has no limitations and is
- theoretically the slowest due to the divisions used. For this particular
- implementation it is surprisingly quite fast.
-
-config CONFIG_BIGINT_MONTGOMERY
- bool "Montgomery"
- help
- Montgomery uses simple addition and multiplication to achieve its
- performance. In this implementation it is slower than classical,
- and it has the limitation that 0 <= x, y < m, and so is not used
- when CRT is active.
-
- This option will not be normally selected.
-
-config CONFIG_BIGINT_BARRETT
- bool "Barrett"
- help
- Barrett performs expensive precomputation before reduction and partial
- multiplies for computational speed. It can't be used with some of the
- calculations when CRT is used, and so defaults to classical when this
- occurs.
-
- It is about 40% faster than Classical/Montgomery with the expense of
- about 2kB, and so this option is normally selected.
-
-endchoice
-
-config CONFIG_BIGINT_CRT
- bool "Chinese Remainder Theorem (CRT)"
- default y
- help
- Allow the Chinese Remainder Theorem (CRT) to be used.
-
- Uses a number of extra coefficients from the private key to improve the
- performance of a decryption. This feature is one of the most
- significant performance improvements (it reduces a decryption time by
- over 3 times).
-
- This option should be selected.
-
-config CONFIG_BIGINT_KARATSUBA
- bool "Karatsuba Multiplication"
- default n
- help
- Allow Karasuba multiplication to be used.
-
- Uses 3 multiplications (plus a number of additions/subtractions)
- instead of 4. Multiplications are O(N^2) but addition/subtraction
- is O(N) hence for large numbers is beneficial. For this project, the
- effect was only useful for 4096 bit keys. As these aren't likely to
- be used, the feature is disabled by default.
-
- It costs about 2kB to enable it.
-
-config MUL_KARATSUBA_THRESH
- int "Karatsuba Multiplication Theshold"
- default 20
- depends on CONFIG_BIGINT_KARATSUBA
- help
- The minimum number of components needed before Karasuba muliplication
- is used.
-
- This is very dependent on the speed/implementation of bi_add()/
- bi_subtract(). There is a bit of trial and error here and will be
- at a different point for different architectures.
-
-config SQU_KARATSUBA_THRESH
- int "Karatsuba Square Threshold"
- default 40
- depends on CONFIG_BIGINT_KARATSUBA && CONFIG_BIGINT_SQUARE
- help
- The minimum number of components needed before Karatsuba squaring
- is used.
-
- This is very dependent on the speed/implementation of bi_add()/
- bi_subtract(). There is a bit of trial and error here and will be
- at a different point for different architectures.
-
-config CONFIG_BIGINT_SLIDING_WINDOW
- bool "Sliding Window Exponentiation"
- default y
- help
- Allow Sliding-Window Exponentiation to be used.
-
- Potentially processes more than 1 bit at a time when doing
- exponentiation. The sliding-window technique reduces the number of
- precomputations compared to other precomputed techniques.
-
- It results in a considerable performance improvement with it enabled
- (it halves the decryption time) and so should be selected.
-
-config CONFIG_BIGINT_SQUARE
- bool "Square Algorithm"
- default y
- help
- Allow squaring to be used instead of a multiplication.
-
- Squaring is theoretically 50% faster than a standard multiply
- (but is actually about 25% faster).
-
- It gives a 20% speed improvement and so should be selected.
-
-config CONFIG_BIGINT_CHECK_ON
- bool "BigInt Integrity Checking"
- default n if !CONFIG_DEBUG
- default y if CONFIG_DEBUG
- help
- This is used when developing bigint algorithms. It performs a sanity
- check on all operations at the expense of speed.
-
- This option is only selected when developing and should normally be
- turned off.
-
-endmenu
-
-
-