Michael Niedermayer
43bbc3f477
xtea: give constants the correct type
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
f0fce9f33e
xtea: Test inplace decryption
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Based on test code by: Giorgio Vazzana <mywing81@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
Michael Niedermayer
b434500431
xtea: Fix CBC decryption when src==dst
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Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
Martin Storsjö
ca074cc313
xtea: Factorize testing into a separate function
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Based on a patch by Michael Niedermayer.
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
Giorgio Vazzana
a8cb21fd62
xtea: fix decryption with --enable-small
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iv decrypt handling code needs to be executed regardless of CONFIG_SMALL
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
48154c2594
xtea: move iv decrypt handling code into xtea_crypt_ecb()
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this simplifies things are avoids a temporary
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
a4dcdd04d7
xtea-test: test inplace decryption
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Based on test code by: Giorgio Vazzana <mywing81@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Giorgio Vazzana
8c3ee93be5
xtea: fix CBC mode when src=dst
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In CBC mode, when src=dst and we are decrypting a block different
from the first one, we need to save the current block of ciphertext
(which will constitute the initialization vector for the next block)
before we overwrite it.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
a0321dadfd
xtea-test: factorize test code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
bb4ddeea5f
xtea: optimize core, about 4-5% faster.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Samuel Pitoiset
983db9b2b4
xtea: Make the count parameter match the documentation
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Previously it was interpreted as number of bytes, while the
documentation stated that it was the number of 8 byte blocks.
This makes it behave similarly to the existing AES code.
Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Luca Barbato
f6687bf5f8
xtea: invert branch and loop precedence
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Should slightly improve performance depending on the compiler used.
13 years ago
Samuel Pitoiset
8c14f7a593
Add XTEA encryption support in libavutil
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Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago