1 files changed, 18 insertions, 4 deletions

diff --git a/README.md b/README.md
index c8f787c..5398774 100644
--- a/README.md
+++ b/README.md
@@ -15,13 +15,13 @@ ecgen [-l|-s|-p]
 	-p for a generator of the whole curve as well as a smallest prime order point(pubkey)
 ```
 ecgen then reads three lines of input:
-`p`
-`a`
-`b`
+* `p` - a prime number, in hex, without hex prefix
+* `a` - a random number, in hex, without hex prefix
+* `b` - a random number, in hex, without hex prefix
 the curve is then specified as `E(Fp): y^2 = x^3 + a x + b mod p`
 
 #### gen.sh
-Utility script, uses openssl to generate the *p*, *a*, *b* parameters
+Utility script, uses OpenSSL to generate the *p*, *a*, *b* parameters
 required for ecgen.
 ```
 gen.sh [-l|-s|-p] [num_curves] [prime_size] [timeout]
@@ -32,3 +32,17 @@ This script will generate `num_curves` curves with random parameters.
 It requires a timeout value, as the curve order computation can get really
 slow for some unfortunate curve parameters, it is therefore more effective
 to skip those after some timeout.
+
+### Build
+```
+git clone https://github.com/J08nY/ecgen.git
+cd ecgen
+make
+```
+
+### Requirements
+ecgen uses the [PARI/GP](http://pari.math.u-bordeaux.fr/) library for elliptic
+curve arithmetic and it's SEA point counting algorithm implementation.
+
+gen.sh script uses [OpenSSL](https://www.openssl.org/) to generate the random domain parameters,
+although any library/language can be used here, ecgen does not require OpenSSL.