* #35924 (zrtp): switch to libzrtpcpp
diff --git a/jni/libzrtp/sources/bnlib/bn.c b/jni/libzrtp/sources/bnlib/bn.c
new file mode 100644
index 0000000..36d07fc
--- /dev/null
+++ b/jni/libzrtp/sources/bnlib/bn.c
@@ -0,0 +1,104 @@
+/*
+ * bn.c - the high-level bignum interface
+ *
+ * Copyright (c) 1995 Colin Plumb. All rights reserved.
+ * For licensing and other legal details, see the file legal.c.
+ */
+
+#include <bn.h>
+
+/* Functions */
+void
+bnBegin(struct BigNum *bn)
+{
+ static int bninit = 0;
+
+ if (!bninit) {
+ bnInit();
+ bninit = 1;
+ }
+
+ bn->ptr = 0;
+ bn->size = 0;
+ bn->allocated = 0;
+}
+
+void
+bnSwap(struct BigNum *a, struct BigNum *b)
+{
+ void *p;
+ unsigned t;
+
+ p = a->ptr;
+ a->ptr = b->ptr;
+ b->ptr = p;
+
+ t = a->size;
+ a->size = b->size;
+ b->size = t;
+
+ t = a->allocated;
+ a->allocated = b->allocated;
+ b->allocated = t;
+}
+
+int (*bnYield)(void);
+
+void (*bnEnd)(struct BigNum *bn);
+int (*bnPrealloc)(struct BigNum *bn, unsigned bits);
+int (*bnCopy)(struct BigNum *dest, struct BigNum const *src);
+void (*bnNorm)(struct BigNum *bn);
+void (*bnExtractBigBytes)(struct BigNum const *bn, unsigned char *dest,
+ unsigned lsbyte, unsigned len);
+int (*bnInsertBigBytes)(struct BigNum *bn, unsigned char const *src,
+ unsigned lsbyte, unsigned len);
+void (*bnExtractLittleBytes)(struct BigNum const *bn, unsigned char *dest,
+ unsigned lsbyte, unsigned len);
+int (*bnInsertLittleBytes)(struct BigNum *bn, unsigned char const *src,
+ unsigned lsbyte, unsigned len);
+unsigned (*bnLSWord)(struct BigNum const *src);
+int (*bnReadBit)(struct BigNum const *bn, unsigned bit);
+unsigned (*bnBits)(struct BigNum const *src);
+int (*bnAdd)(struct BigNum *dest, struct BigNum const *src);
+int (*bnSub)(struct BigNum *dest, struct BigNum const *src);
+int (*bnCmpQ)(struct BigNum const *a, unsigned b);
+int (*bnSetQ)(struct BigNum *dest, unsigned src);
+int (*bnAddQ)(struct BigNum *dest, unsigned src);
+int (*bnSubQ)(struct BigNum *dest, unsigned src);
+int (*bnCmp)(struct BigNum const *a, struct BigNum const *b);
+int (*bnSquare)(struct BigNum *dest, struct BigNum const *src);
+int (*bnMul)(struct BigNum *dest, struct BigNum const *a,
+ struct BigNum const *b);
+int (*bnMulQ)(struct BigNum *dest, struct BigNum const *a, unsigned b);
+int (*bnDivMod)(struct BigNum *q, struct BigNum *r, struct BigNum const *n,
+ struct BigNum const *d);
+int (*bnMod)(struct BigNum *dest, struct BigNum const *src,
+ struct BigNum const *d);
+unsigned (*bnModQ)(struct BigNum const *src, unsigned d);
+int (*bnExpMod)(struct BigNum *result, struct BigNum const *n,
+ struct BigNum const *exp, struct BigNum const *mod);
+int (*bnDoubleExpMod)(struct BigNum *dest,
+ struct BigNum const *n1, struct BigNum const *e1,
+ struct BigNum const *n2, struct BigNum const *e2,
+ struct BigNum const *mod);
+int (*bnTwoExpMod)(struct BigNum *n, struct BigNum const *exp,
+ struct BigNum const *mod);
+int (*bnGcd)(struct BigNum *dest, struct BigNum const *a,
+ struct BigNum const *b);
+int (*bnInv)(struct BigNum *dest, struct BigNum const *src,
+ struct BigNum const *mod);
+int (*bnLShift)(struct BigNum *dest, unsigned amt);
+void (*bnRShift)(struct BigNum *dest, unsigned amt);
+unsigned (*bnMakeOdd)(struct BigNum *n);
+int (*bnBasePrecompBegin)(struct BnBasePrecomp *pre, struct BigNum const *base,
+ struct BigNum const *mod, unsigned maxebits);
+int (*bnBasePrecompCopy)(struct BnBasePrecomp *dst,
+ struct BnBasePrecomp const *src);
+void (*bnBasePrecompEnd)(struct BnBasePrecomp *pre);
+int (*bnBasePrecompExpMod)(struct BigNum *dest,
+ struct BnBasePrecomp const *pre, struct BigNum const *exp,
+ struct BigNum const *mod);
+int (*bnDoubleBasePrecompExpMod)(struct BigNum *dest,
+ struct BnBasePrecomp const *pre1, struct BigNum const *exp1,
+ struct BnBasePrecomp const *pre2, struct BigNum const *exp2,
+ struct BigNum const *mod);