diff --git a/Cargo.lock b/Cargo.lock
index 602e10bd1005f1fcea5157d461adef31c0a2e439..3760ea3076ed8933035009417ead039d331c50e8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -230,7 +230,7 @@ dependencies = [
  "duniter-message 0.1.0-a0.1",
  "duniter-module 0.1.0-a0.1",
  "duniter-network 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "durs-network-documents 0.1.0-a0.1",
  "durs-wot 0.8.0-a0.9",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -250,7 +250,7 @@ dependencies = [
  "dirs 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "duniter-documents 0.9.0-b1",
  "duniter-module 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.78 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -267,7 +267,7 @@ dependencies = [
  "duniter-message 0.1.0-a0.1",
  "duniter-module 0.1.0-a0.1",
  "duniter-network 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log-panics 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.78 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -285,7 +285,7 @@ dependencies = [
  "duniter-documents 0.9.0-b1",
  "duniter-module 0.1.0-a0.1",
  "duniter-network 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "durs-wot 0.8.0-a0.9",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -302,7 +302,7 @@ dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "pest 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -318,7 +318,7 @@ dependencies = [
  "duniter-documents 0.9.0-b1",
  "duniter-module 0.1.0-a0.1",
  "duniter-network 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "serde 1.0.78 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -329,7 +329,7 @@ name = "duniter-module"
 version = "0.1.0-a0.1"
 dependencies = [
  "duniter-documents 0.9.0-b1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "serde 1.0.78 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -342,7 +342,7 @@ version = "0.1.0-a0.1"
 dependencies = [
  "duniter-documents 0.9.0-b1",
  "duniter-module 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "durs-network-documents 0.1.0-a0.1",
  "serde 1.0.78 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -359,7 +359,7 @@ dependencies = [
  "duniter-message 0.1.0-a0.1",
  "duniter-module 0.1.0-a0.1",
  "duniter-network 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "durs-network-documents 0.1.0-a0.1",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.78 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -371,7 +371,7 @@ dependencies = [
 
 [[package]]
 name = "dup-crypto"
-version = "0.3.0-b1"
+version = "0.3.0-b2"
 dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -400,7 +400,7 @@ dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "duniter-documents 0.9.0-b1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "pest 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "pretty_assertions 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -428,7 +428,7 @@ dependencies = [
  "duniter-message 0.1.0-a0.1",
  "duniter-module 0.1.0-a0.1",
  "duniter-network 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "durs-network-documents 0.1.0-a0.1",
  "durs-ws2p-messages 0.1.0-a0.1",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -444,7 +444,7 @@ dependencies = [
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "duniter-documents 0.9.0-b1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "durs-network-documents 0.1.0-a0.1",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "pretty_assertions 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -465,7 +465,7 @@ dependencies = [
  "duniter-message 0.1.0-a0.1",
  "duniter-module 0.1.0-a0.1",
  "duniter-network 0.1.0-a0.1",
- "dup-crypto 0.3.0-b1",
+ "dup-crypto 0.3.0-b2",
  "durs-network-documents 0.1.0-a0.1",
  "durs-wot 0.8.0-a0.9",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/crypto/Cargo.toml b/crypto/Cargo.toml
index c27aedb01dbb00943f7cdf925ea0052043fdb08c..9927beb5b62f9b4a692388dcd04c4260ac8cd379 100644
--- a/crypto/Cargo.toml
+++ b/crypto/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dup-crypto"
-version = "0.3.0-b1"
+version = "0.3.0-b2"
 authors = ["nanocryk <nanocryk@duniter.org>", "elois <elois@duniter.org>"]
 description = "Manage cryptographic operations for the DUP (DUniter Protocol)."
 repository = "https://git.duniter.org/nodes/rust/duniter-rs"