Add bindings to readme (#154)

* Add bindings section to readme

* Reorganize a little bit

* Remove extra blank lines

README.md

@@ -1,21 +1,41 @@
-# C-KZG-4844: A minimal library for EIP-4844 Polynomial Commitments
+# C-KZG-4844
 
-This is a copy of [C-KZG](https://github.com/benjaminion/c-kzg) stripped-down to support the
-[Polynomial Commitments](https://github.com/ethereum/consensus-specs/blob/dev/specs/eip4844/polynomial-commitments.md) API:
+This is a minimal library for EIP-4844 that implements the [Polynomial
+Commitments](https://github.com/ethereum/consensus-specs/blob/dev/specs/deneb/polynomial-commitments.md)
+API. It was originally a stripped-down copy of
+[C-KZG](https://github.com/benjaminion/c-kzg), but it has been heavily modified
+since then.
+
+## Interface functions
+
+There are functions for KZG operations:
 
 - `blob_to_kzg_commitment`
 - `compute_kzg_proof`
-- `verify_kzg_proof`
 - `compute_blob_kzg_proof`
+- `verify_kzg_proof`
 - `verify_blob_kzg_proof`
 - `verify_blob_kzg_proof_batch`
 
-We also provide functions for loading/freeing the trusted setup:
+There are functions for loading/freeing the trusted setup:
 
 - `load_trusted_setup`
 - `load_trusted_setup_file`
 - `free_trusted_setup`
 
+## Bindings
+
+There are bindings for the following languages:
+
+| Language | Link                                 |
+|----------|--------------------------------------|
+| C#       | [README](bindings/csharp/README.md)  |
+| Go       | [README](bindings/go/README.md)      |
+| Java     | [README](bindings/java/README.md)    |
+| Node.js  | [README](bindings/node.js/README.md) |
+| Python   | [README](bindings/python/README.md)  |
+| Rust     | [README](bindings/rust/README.md)    |
+
 ## Installation
 
 Initialize the blst submodule:
@@ -24,14 +44,14 @@ Initialize the blst submodule:
 git submodule update --init
 ```
 
-Build blst:
+Build the blst library:
 
 ```
 cd src
 make blst
 ```
 
-Build the C-KZG code:
+Build/test the C-KZG-4844 library:
 
 ```
 cd src

bindings/csharp/README.md

@@ -0,0 +1,15 @@
+# C# bindings
+
+This directory contains C# bindings for the C-KZG-4844 library.
+
+## Prerequisites
+
+These bindings require .NET 6.0 (not 7.0). This can be found here:
+* https://dotnet.microsoft.com/en-us/download/dotnet/6.0
+
+## Build & test
+
+Everything is consolidated into one command:
+```
+make
+```

bindings/python/.gitignore

@@ -0,0 +1 @@
+build/

bindings/python/Makefile

@@ -1,8 +1,11 @@
 .PHONY: all
 all: install test ecc_test
 
+../../src/c-kzg-4844.o:
+	cd ../../src/ && make blst && make
+
 .PHONY: install
-install: setup.py ckzg.c
+install: setup.py ckzg.c ../../src/c-kzg-4844.o
 	python3 setup.py install
 
 .PHONY: test

bindings/python/README.md

@@ -0,0 +1,26 @@
+# Python bindings
+
+This directory contains Python bindings for the C-KZG-4844 library.
+
+## Prerequisites
+
+These bindings require `python3` and `py-ecc`.
+```
+sudo apt install python3 python3-pip
+python3 -m pip install py-ecc
+```
+
+## Build & test
+
+Everything is consolidated into one command:
+```
+make
+```
+
+You should expect to see these messages at the bottom:
+```
+python3 tests.py
+tests passed
+python3 py_ecc_tests.py
+comparison to py_ecc passed
+```

bindings/rust/README.md

@@ -8,7 +8,8 @@ Generates the rust bindings for the c-kzg library.
 cargo build --release
 ```
 
-Build with `--features="minimal-spec"` to set the `FIELD_ELEMENTS_PER_BLOB` compile time parameter to the pre-determined minimal spec value. 
+Build with `--features="minimal-spec"` to set the `FIELD_ELEMENTS_PER_BLOB`
+compile time parameter to the pre-determined minimal spec value.
 
 ## Test
 

src/Makefile

@@ -42,7 +42,7 @@ endif
 # Makefile Rules
 ###############################################################################
 
-all: c_kzg_4844.o
+all: c_kzg_4844.o test
 
 %.o: %.c
 	@$(CC) $(CFLAGS) -c $<