diff --git a/packages/launchpad/src/index.ts b/packages/launchpad/src/index.ts
index 14db51fa..d97792e4 100644
--- a/packages/launchpad/src/index.ts
+++ b/packages/launchpad/src/index.ts
@@ -2,11 +2,14 @@
 export {
   decodeAminoPubkey,
   decodeBech32Pubkey,
+  decodeSignature,
   encodeAminoPubkey,
   encodeBech32Pubkey,
   encodeSecp256k1Pubkey,
+  encodeSecp256k1Signature,
   pubkeyToAddress,
   pubkeyType,
+  StdSignature,
 } from "@cosmjs/amino";
 import { SinglePubkey } from "@cosmjs/amino";
 /** @deprecated PubKey is deprecated. Use `SinglePubkey` or the more general `Pubkey` from `@cosmjs/amino`. */
@@ -139,11 +142,10 @@ export {
 } from "./msgs";
 export { makeCosmoshubPath } from "./paths";
 export { findSequenceForSignedTx } from "./sequence";
-export { encodeSecp256k1Signature, decodeSignature } from "./signature";
 export { AccountData, Algo, AminoSignResponse, OfflineSigner } from "./signer";
 export { CosmosFeeTable, SigningCosmosClient } from "./signingcosmosclient";
 export { isStdTx, isWrappedStdTx, makeStdTx, CosmosSdkTx, StdTx, WrappedStdTx, WrappedTx } from "./tx";
-export { StdFee, StdSignature } from "./types";
+export { StdFee } from "./types";
 export { executeKdf, KdfConfiguration } from "./wallet";
 export { extractKdfConfiguration, Secp256k1HdWallet } from "./secp256k1hdwallet";
 export { Secp256k1Wallet } from "./secp256k1wallet";
diff --git a/packages/launchpad/src/secp256k1hdwallet.ts b/packages/launchpad/src/secp256k1hdwallet.ts
index fa7d8b9c..38e29a43 100644
--- a/packages/launchpad/src/secp256k1hdwallet.ts
+++ b/packages/launchpad/src/secp256k1hdwallet.ts
@@ -1,4 +1,4 @@
-import { rawSecp256k1PubkeyToRawAddress } from "@cosmjs/amino";
+import { encodeSecp256k1Signature, rawSecp256k1PubkeyToRawAddress } from "@cosmjs/amino";
 import {
   Bip39,
   EnglishMnemonic,
@@ -16,7 +16,6 @@ import { assert, isNonNullObject } from "@cosmjs/utils";
 
 import { serializeSignDoc, StdSignDoc } from "./encoding";
 import { makeCosmoshubPath } from "./paths";
-import { encodeSecp256k1Signature } from "./signature";
 import { AccountData, AminoSignResponse, OfflineSigner } from "./signer";
 import {
   decrypt,
diff --git a/packages/launchpad/src/secp256k1wallet.ts b/packages/launchpad/src/secp256k1wallet.ts
index 94552d84..247ba3d1 100644
--- a/packages/launchpad/src/secp256k1wallet.ts
+++ b/packages/launchpad/src/secp256k1wallet.ts
@@ -1,9 +1,8 @@
-import { rawSecp256k1PubkeyToRawAddress } from "@cosmjs/amino";
+import { encodeSecp256k1Signature, rawSecp256k1PubkeyToRawAddress } from "@cosmjs/amino";
 import { Secp256k1, Sha256 } from "@cosmjs/crypto";
 import { Bech32 } from "@cosmjs/encoding";
 
 import { serializeSignDoc, StdSignDoc } from "./encoding";
-import { encodeSecp256k1Signature } from "./signature";
 import { AccountData, AminoSignResponse, OfflineSigner } from "./signer";
 
 /**
diff --git a/packages/launchpad/src/sequence.ts b/packages/launchpad/src/sequence.ts
index 3ed14221..c833107a 100644
--- a/packages/launchpad/src/sequence.ts
+++ b/packages/launchpad/src/sequence.ts
@@ -1,7 +1,7 @@
+import { decodeSignature } from "@cosmjs/amino";
 import { Secp256k1, Secp256k1Signature, sha256 } from "@cosmjs/crypto";
 
 import { makeSignDoc, serializeSignDoc } from "./encoding";
-import { decodeSignature } from "./signature";
 import { WrappedStdTx } from "./tx";
 
 /**
diff --git a/packages/launchpad/src/signature.spec.ts b/packages/launchpad/src/signature.spec.ts
deleted file mode 100644
index dd1d6a38..00000000
--- a/packages/launchpad/src/signature.spec.ts
+++ /dev/null
@@ -1,66 +0,0 @@
-/* eslint-disable @typescript-eslint/naming-convention */
-import { fromBase64 } from "@cosmjs/encoding";
-
-import { decodeSignature, encodeSecp256k1Signature } from "./signature";
-import { StdSignature } from "./types";
-
-describe("signature", () => {
-  describe("encodeSecp256k1Signature", () => {
-    it("encodes a full signature", () => {
-      const pubkey = fromBase64("AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP");
-      const signature = fromBase64(
-        "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-      );
-      expect(encodeSecp256k1Signature(pubkey, signature)).toEqual({
-        pub_key: {
-          type: "tendermint/PubKeySecp256k1",
-          value: "AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP",
-        },
-        signature: "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-      });
-    });
-
-    it("throws when getting uncompressed public keys", () => {
-      const pubkey = fromBase64(
-        "BE8EGB7ro1ORuFhjOnZcSgwYlpe0DSFjVNUIkNNQxwKQE7WHpoHoNswYeoFkuYpYSKK4mzFzMV/dB0DVAy4lnNU=",
-      );
-      const signature = fromBase64(
-        "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-      );
-      expect(() => encodeSecp256k1Signature(pubkey, signature)).toThrowError(
-        /public key must be compressed secp256k1/i,
-      );
-    });
-
-    it("throws if signature contains recovery byte", () => {
-      const pubkey = fromBase64("AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP");
-      const signature = Uint8Array.from([
-        ...fromBase64(
-          "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-        ),
-        99,
-      ]);
-      expect(() => encodeSecp256k1Signature(pubkey, signature)).toThrowError(
-        /signature must be 64 bytes long/i,
-      );
-    });
-  });
-
-  describe("decodeSignature", () => {
-    it("works for secp256k1", () => {
-      const signature: StdSignature = {
-        pub_key: {
-          type: "tendermint/PubKeySecp256k1",
-          value: "AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP",
-        },
-        signature: "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-      };
-      expect(decodeSignature(signature)).toEqual({
-        pubkey: fromBase64("AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP"),
-        signature: fromBase64(
-          "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-        ),
-      });
-    });
-  });
-});
diff --git a/packages/launchpad/src/signature.ts b/packages/launchpad/src/signature.ts
deleted file mode 100644
index 15f37f00..00000000
--- a/packages/launchpad/src/signature.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-/* eslint-disable @typescript-eslint/naming-convention */
-import { encodeSecp256k1Pubkey, pubkeyType } from "@cosmjs/amino";
-import { fromBase64, toBase64 } from "@cosmjs/encoding";
-
-import { StdSignature } from "./types";
-
-/**
- * Takes a binary pubkey and signature to create a signature object
- *
- * @param pubkey a compressed secp256k1 public key
- * @param signature a 64 byte fixed length representation of secp256k1 signature components r and s
- */
-export function encodeSecp256k1Signature(pubkey: Uint8Array, signature: Uint8Array): StdSignature {
-  if (signature.length !== 64) {
-    throw new Error(
-      "Signature must be 64 bytes long. Cosmos SDK uses a 2x32 byte fixed length encoding for the secp256k1 signature integers r and s.",
-    );
-  }
-
-  return {
-    pub_key: encodeSecp256k1Pubkey(pubkey),
-    signature: toBase64(signature),
-  };
-}
-
-export function decodeSignature(
-  signature: StdSignature,
-): { readonly pubkey: Uint8Array; readonly signature: Uint8Array } {
-  switch (signature.pub_key.type) {
-    // Note: please don't add cases here without writing additional unit tests
-    case pubkeyType.secp256k1:
-      return {
-        pubkey: fromBase64(signature.pub_key.value),
-        signature: fromBase64(signature.signature),
-      };
-    default:
-      throw new Error("Unsupported pubkey type");
-  }
-}
diff --git a/packages/launchpad/src/signer.ts b/packages/launchpad/src/signer.ts
index 57b9829c..a2f25eb1 100644
--- a/packages/launchpad/src/signer.ts
+++ b/packages/launchpad/src/signer.ts
@@ -1,5 +1,6 @@
+import { StdSignature } from "@cosmjs/amino";
+
 import { StdSignDoc } from "./encoding";
-import { StdSignature } from "./types";
 
 export type Algo = "secp256k1" | "ed25519" | "sr25519";
 
diff --git a/packages/launchpad/src/tx.spec.ts b/packages/launchpad/src/tx.spec.ts
index 21bf834f..848c0c56 100644
--- a/packages/launchpad/src/tx.spec.ts
+++ b/packages/launchpad/src/tx.spec.ts
@@ -1,8 +1,10 @@
 /* eslint-disable @typescript-eslint/naming-convention */
+import { StdSignature } from "@cosmjs/amino";
+
 import { coins } from "./coins";
 import { makeSignDoc } from "./encoding";
 import { makeStdTx } from "./tx";
-import { StdFee, StdSignature } from "./types";
+import { StdFee } from "./types";
 
 describe("tx", () => {
   describe("makeStdTx", () => {
diff --git a/packages/launchpad/src/tx.ts b/packages/launchpad/src/tx.ts
index a466c9f4..e88ab00f 100644
--- a/packages/launchpad/src/tx.ts
+++ b/packages/launchpad/src/tx.ts
@@ -1,6 +1,8 @@
+import { StdSignature } from "@cosmjs/amino";
+
 import { StdSignDoc } from "./encoding";
 import { Msg } from "./msgs";
-import { StdFee, StdSignature } from "./types";
+import { StdFee } from "./types";
 
 /**
  * A Cosmos SDK StdTx
diff --git a/packages/launchpad/src/types.ts b/packages/launchpad/src/types.ts
index bb674bc1..91fc04c0 100644
--- a/packages/launchpad/src/types.ts
+++ b/packages/launchpad/src/types.ts
@@ -1,14 +1,7 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { Pubkey } from "@cosmjs/amino";
-
 import { Coin } from "./coins";
 
 export interface StdFee {
   readonly amount: readonly Coin[];
   readonly gas: string;
 }
-
-export interface StdSignature {
-  readonly pub_key: Pubkey;
-  readonly signature: string;
-}