* #35924 (zrtp): switch to libzrtpcpp
diff --git a/jni/libzrtp/sources/bnlib/lbn32.h b/jni/libzrtp/sources/bnlib/lbn32.h
new file mode 100644
index 0000000..e975550
--- /dev/null
+++ b/jni/libzrtp/sources/bnlib/lbn32.h
@@ -0,0 +1,152 @@
+#ifndef LBN32_H
+#define LBN32_H
+
+#include "lbn.h"
+
+#ifndef BNWORD32
+#error 32-bit bignum library requires a 32-bit data type
+#endif
+
+#ifndef lbnCopy_32
+void lbnCopy_32(BNWORD32 *dest, BNWORD32 const *src, unsigned len);
+#endif
+#ifndef lbnZero_32
+void lbnZero_32(BNWORD32 *num, unsigned len);
+#endif
+#ifndef lbnNeg_32
+void lbnNeg_32(BNWORD32 *num, unsigned len);
+#endif
+
+#ifndef lbnAdd1_32
+BNWORD32 lbnAdd1_32(BNWORD32 *num, unsigned len, BNWORD32 carry);
+#endif
+#ifndef lbnSub1_32
+BNWORD32 lbnSub1_32(BNWORD32 *num, unsigned len, BNWORD32 borrow);
+#endif
+
+#ifndef lbnAddN_32
+BNWORD32 lbnAddN_32(BNWORD32 *num1, BNWORD32 const *num2, unsigned len);
+#endif
+#ifndef lbnSubN_32
+BNWORD32 lbnSubN_32(BNWORD32 *num1, BNWORD32 const *num2, unsigned len);
+#endif
+
+#ifndef lbnCmp_32
+int lbnCmp_32(BNWORD32 const *num1, BNWORD32 const *num2, unsigned len);
+#endif
+
+#ifndef lbnMulN1_32
+void lbnMulN1_32(BNWORD32 *out, BNWORD32 const *in, unsigned len, BNWORD32 k);
+#endif
+#ifndef lbnMulAdd1_32
+BNWORD32
+lbnMulAdd1_32(BNWORD32 *out, BNWORD32 const *in, unsigned len, BNWORD32 k);
+#endif
+#ifndef lbnMulSub1_32
+BNWORD32 lbnMulSub1_32(BNWORD32 *out, BNWORD32 const *in, unsigned len, BNWORD32 k);
+#endif
+
+#ifndef lbnLshift_32
+BNWORD32 lbnLshift_32(BNWORD32 *num, unsigned len, unsigned shift);
+#endif
+#ifndef lbnDouble_32
+BNWORD32 lbnDouble_32(BNWORD32 *num, unsigned len);
+#endif
+#ifndef lbnRshift_32
+BNWORD32 lbnRshift_32(BNWORD32 *num, unsigned len, unsigned shift);
+#endif
+
+#ifndef lbnMul_32
+void lbnMul_32(BNWORD32 *prod, BNWORD32 const *num1, unsigned len1,
+ BNWORD32 const *num2, unsigned len2);
+#endif
+#ifndef lbnSquare_32
+void lbnSquare_32(BNWORD32 *prod, BNWORD32 const *num, unsigned len);
+#endif
+
+#ifndef lbnNorm_32
+unsigned lbnNorm_32(BNWORD32 const *num, unsigned len);
+#endif
+#ifndef lbnBits_32
+unsigned lbnBits_32(BNWORD32 const *num, unsigned len);
+#endif
+
+#ifndef lbnExtractBigBytes_32
+void lbnExtractBigBytes_32(BNWORD32 const *bn, unsigned char *buf,
+ unsigned lsbyte, unsigned buflen);
+#endif
+#ifndef lbnInsertBigytes_32
+void lbnInsertBigBytes_32(BNWORD32 *n, unsigned char const *buf,
+ unsigned lsbyte, unsigned buflen);
+#endif
+#ifndef lbnExtractLittleBytes_32
+void lbnExtractLittleBytes_32(BNWORD32 const *bn, unsigned char *buf,
+ unsigned lsbyte, unsigned buflen);
+#endif
+#ifndef lbnInsertLittleBytes_32
+void lbnInsertLittleBytes_32(BNWORD32 *n, unsigned char const *buf,
+ unsigned lsbyte, unsigned buflen);
+#endif
+
+#ifndef lbnDiv21_32
+BNWORD32 lbnDiv21_32(BNWORD32 *q, BNWORD32 nh, BNWORD32 nl, BNWORD32 d);
+#endif
+#ifndef lbnDiv1_32
+BNWORD32 lbnDiv1_32(BNWORD32 *q, BNWORD32 *rem,
+ BNWORD32 const *n, unsigned len, BNWORD32 d);
+#endif
+#ifndef lbnModQ_32
+unsigned lbnModQ_32(BNWORD32 const *n, unsigned len, unsigned d);
+#endif
+#ifndef lbnDiv_32
+BNWORD32
+lbnDiv_32(BNWORD32 *q, BNWORD32 *n, unsigned nlen, BNWORD32 *d, unsigned dlen);
+#endif
+
+#ifndef lbnMontInv1_32
+BNWORD32 lbnMontInv1_32(BNWORD32 const x);
+#endif
+#ifndef lbnMontReduce_32
+void lbnMontReduce_32(BNWORD32 *n, BNWORD32 const *mod, unsigned const mlen,
+ BNWORD32 inv);
+#endif
+#ifndef lbnToMont_32
+void lbnToMont_32(BNWORD32 *n, unsigned nlen, BNWORD32 *mod, unsigned mlen);
+#endif
+#ifndef lbnFromMont_32
+void lbnFromMont_32(BNWORD32 *n, BNWORD32 *mod, unsigned len);
+#endif
+
+#ifndef lbnExpMod_32
+int lbnExpMod_32(BNWORD32 *result, BNWORD32 const *n, unsigned nlen,
+ BNWORD32 const *exp, unsigned elen, BNWORD32 *mod, unsigned mlen);
+#endif
+#ifndef lbnDoubleExpMod_32
+int lbnDoubleExpMod_32(BNWORD32 *result,
+ BNWORD32 const *n1, unsigned n1len, BNWORD32 const *e1, unsigned e1len,
+ BNWORD32 const *n2, unsigned n2len, BNWORD32 const *e2, unsigned e2len,
+ BNWORD32 *mod, unsigned mlen);
+#endif
+#ifndef lbnTwoExpMod_32
+int lbnTwoExpMod_32(BNWORD32 *n, BNWORD32 const *exp, unsigned elen,
+ BNWORD32 *mod, unsigned mlen);
+#endif
+#ifndef lbnGcd_32
+int lbnGcd_32(BNWORD32 *a, unsigned alen, BNWORD32 *b, unsigned blen,
+ unsigned *rlen);
+#endif
+#ifndef lbnInv_32
+int lbnInv_32(BNWORD32 *a, unsigned alen, BNWORD32 const *mod, unsigned mlen);
+#endif
+
+int lbnBasePrecompBegin_32(BNWORD32 **array, unsigned n, unsigned bits,
+ BNWORD32 const *g, unsigned glen, BNWORD32 *mod, unsigned mlen);
+int lbnBasePrecompExp_32(BNWORD32 *result, BNWORD32 const * const *array,
+ unsigned bits, BNWORD32 const *exp, unsigned elen,
+ BNWORD32 const *mod, unsigned mlen);
+int lbnDoubleBasePrecompExp_32(BNWORD32 *result, unsigned bits,
+ BNWORD32 const * const *array1, BNWORD32 const *exp1, unsigned elen1,
+ BNWORD32 const * const *array2, BNWORD32 const *exp2,
+ unsigned elen2, BNWORD32 const *mod, unsigned mlen);
+
+#endif /* LBN32_H */