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ignore error if not support "chacha20-ietf"

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This commit is contained in:
BreakWa11 2015-12-22 11:22:46 +08:00
parent 3dec2377bb
commit ddcf7f796f
1 changed files with 6 additions and 3 deletions
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9
shadowsocks/crypto/sodium.py
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@ -29,7 +29,7 @@ loaded = False
buf_size = 2048
# for salsa20 and chacha20
# for salsa20 and chacha20 and chacha20-ietf
BLOCK_SIZE = 64
@ -52,11 +52,14 @@ def load_libsodium():
c_char_p, c_ulonglong,
c_char_p)
libsodium.crypto_stream_chacha20_ietf_xor_ic.restype = c_int
libsodium.crypto_stream_chacha20_ietf_xor_ic.argtypes = (c_void_p, c_char_p,
try:
libsodium.crypto_stream_chacha20_ietf_xor_ic.restype = c_int
libsodium.crypto_stream_chacha20_ietf_xor_ic.argtypes = (c_void_p, c_char_p,
c_ulonglong,
c_char_p, c_ulonglong,
c_char_p)
except:
pass
buf = create_string_buffer(buf_size)
loaded = True