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@ -65,6 +65,8 @@ BIGNUM *BN_mod_sqrt(BIGNUM *in, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
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* using the Tonelli/Shanks algorithm (cf. Henri Cohen, "A Course
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* in Algebraic Computational Number Theory", algorithm 1.5.1).
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* 'p' must be prime!
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* If 'a' is not a square, this is not necessarily detected by
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* the algorithms; a bogus result must be expected in this case.
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*/
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{
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BIGNUM *ret = in;
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