diff --git a/Cargo.lock b/Cargo.lock
index ea4d9ed9642507e4dc0f26d63276c0891cc91009..912b462a8325c5baee67a6465735e6960cf54c8f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -85,7 +85,7 @@ dependencies = [
 
 [[package]]
 name = "duniter-crypto"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -98,10 +98,10 @@ version = "0.4.1"
 dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "duniter-crypto 0.1.0",
+ "duniter-crypto 0.1.1",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "linked-hash-map 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "linked-hash-map 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -152,12 +152,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.35"
+version = "0.2.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "linked-hash-map"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -165,7 +165,7 @@ name = "memchr"
 version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -183,7 +183,7 @@ name = "num_cpus"
 version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -193,11 +193,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rand"
-version = "0.3.20"
+version = "0.3.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -216,9 +227,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -228,7 +239,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "regex"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -249,8 +260,8 @@ version = "0.2.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -326,9 +337,9 @@ name = "time"
 version = "0.1.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -356,21 +367,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "winapi"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi-i686-pc-windows-gnu 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-x86_64-pc-windows-gnu 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
-version = "0.3.2"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
-version = "0.3.2"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
@@ -391,18 +402,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)" = "5e33ec290da0d127825013597dbdfc28bee4964690c7ce1166cbc2a7bd08b1bb"
 "checksum lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "76f033c7ad61445c5b347c7382dd1237847eb1bce590fe50365dcb33d546be73"
 "checksum lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c8f31047daa365f19be14b47c29df4f7c3b581832407daabe6ae77397619237d"
-"checksum libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)" = "96264e9b293e95d25bfcbbf8a88ffd1aedc85b754eba8b7d78012f638ba220eb"
-"checksum linked-hash-map 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d2aab0478615bb586559b0114d94dd8eca4fdbb73b443adcb0d00b61692b4bf"
+"checksum libc 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)" = "56aebce561378d99a0bb578f8cb15b6114d2a1814a6c7949bbe646d968bb4fa9"
+"checksum linked-hash-map 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "70fb39025bc7cdd76305867c4eccf2f2dcf6e9a57f5b21a93e1c2d86cd03ec9e"
 "checksum memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "796fba70e76612589ed2ce7f45282f5af869e0fdd7cc6199fa1aa1f1d591ba9d"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
 "checksum nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "9a2228dca57108069a5262f2ed8bd2e82496d2e074a06d1ccc7ce1687b6ae0a2"
 "checksum num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c51a3322e4bca9d212ad9a158a02abc6934d005490c054a2778df73a70aa0a30"
 "checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
-"checksum rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)" = "512870020642bb8c221bf68baa1b2573da814f6ccfe5c9699b1c303047abe9b1"
+"checksum rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)" = "15a732abf9d20f0ad8eeb6f909bf6868722d9a06e1e50802b6a70351f40b4eb1"
+"checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"
 "checksum rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "485541959c8ecc49865526fe6c4de9653dd6e60d829d6edf0be228167b60372d"
 "checksum rayon-core 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9d24ad214285a7729b174ed6d3bcfcb80177807f959d95fafd5bfc5c4f201ac8"
 "checksum redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "0d92eecebad22b767915e4d529f89f28ee96dbbf5a4810d2b844373f136417fd"
-"checksum regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "744554e01ccbd98fff8c457c3b092cd67af62a555a43bfe97ae8a0451f7799fa"
+"checksum regex 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "5be5347bde0c48cfd8c3fdc0766cdfe9d8a755ef84d620d6794c778c91de8b2b"
 "checksum regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8e931c58b93d86f080c734bfd2bce7dd0079ae2331235818133c8be7f422e20e"
 "checksum rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)" = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"
 "checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
@@ -419,6 +431,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-"checksum winapi 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b09fb3b6f248ea4cd42c9a65113a847d612e17505d6ebd1f7357ad68a8bf8693"
-"checksum winapi-i686-pc-windows-gnu 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ec6667f60c23eca65c561e63a13d81b44234c2e38a6b6c959025ee907ec614cc"
-"checksum winapi-x86_64-pc-windows-gnu 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "98f12c52b2630cd05d2c3ffd8e008f7f48252c042b4871c72aed9dc733b96668"
+"checksum winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "04e3bd221fcbe8a271359c04f21a76db7d0c6028862d1bb5512d85e1e2eb5bb3"
+"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/crypto/Cargo.toml b/crypto/Cargo.toml
index 388d5e894d195439cb3d95f114487546df0c6f0d..a61f71e49ad8a2edca35a052ade4acb3bd357a95 100644
--- a/crypto/Cargo.toml
+++ b/crypto/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "duniter-crypto"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["nanocryk <nanocryk@duniter.org>"]
 description = "Manage cryptographic building blocks for the Duniter project."
 repository = "https://git.duniter.org/nodes/rust/duniter-rs"
diff --git a/crypto/keys/ed25519.rs b/crypto/keys/ed25519.rs
index a3278a8abc0cfd2d02541775d36a60bb8c020429..1d3e50a046d647391b6b47980802eef5fd8daaf3 100644
--- a/crypto/keys/ed25519.rs
+++ b/crypto/keys/ed25519.rs
@@ -92,7 +92,7 @@ impl Eq for Signature {}
 /// Can be generated with [`KeyPairGenerator`].
 ///
 /// [`KeyPairGenerator`]: struct.KeyPairGenerator.html
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
 pub struct PublicKey(pub [u8; 32]);
 
 impl ToBase58 for PublicKey {
diff --git a/crypto/keys/mod.rs b/crypto/keys/mod.rs
index 49b561418b1cbbd17d2095f9e29e3f3e4d9ae1d8..d7cf2769f4a49761643b756259f4d0b0e7bb44f5 100644
--- a/crypto/keys/mod.rs
+++ b/crypto/keys/mod.rs
@@ -48,6 +48,7 @@
 
 use std::fmt::Display;
 use std::fmt::Debug;
+use std::hash::Hash;
 
 use base58::ToBase58;
 
@@ -97,7 +98,7 @@ pub trait Signature: Clone + Display + Debug + PartialEq + Eq {
 /// with the associated [`PrivateKey`].
 ///
 /// [`PrivateKey`]: trait.PrivateKey.html
-pub trait PublicKey: Clone + Display + Debug + PartialEq + Eq + ToBase58 {
+pub trait PublicKey: Clone + Display + Debug + PartialEq + Eq + Hash + ToBase58 {
     /// Signature type of associated cryptosystem.
     type Signature: Signature;