add point scalar multiplication

README.md

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+# babyjubjub-rs
+BabyJubJub elliptic curve implementation in Rust
+
+## Warning
+Doing this in my free time to get familiar with Rust, do not use in production
+
+- [x] point addition
+- [x] point scalar multiplication
+- [ ] point compress&decompress parsers
+- [ ] eddsa keys generation
+- [ ] eddsa signature
+- [ ] eddsa signature verification
+
+
+
+
+### References
+- JubJub curve explanation: https://z.cash/technology/jubjub/
+	- Rust: https://github.com/zkcrypto/jubjub
+	- Python: https://github.com/daira/jubjub
+- BabyJubJub curve:
+	- C++ https://github.com/barryWhiteHat/baby_jubjub_ecc
+	- Javascript & Circom: https://github.com/iden3/circomlib
+	- Go https://github.com/iden3/go-iden3-crypto