diff --git a/package-lock.json b/package-lock.json
index d2c111e4..d593911e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -50,6 +50,7 @@
         "mocha": "^10.2.0",
         "playwright": "^1.30.0",
         "rollup": "^3.29.4",
+        "rollup-plugin-typescript2": "^0.36.0",
         "sinon": "^15.1.0",
         "ts-node": "^10.9.1",
         "typescript": "^4.1.2",
@@ -5347,6 +5348,70 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/pkg-dir": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-4.2.0.tgz",
+      "integrity": "sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==",
+      "dev": true,
+      "dependencies": {
+        "find-up": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/pkg-dir/node_modules/find-up": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz",
+      "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+      "dev": true,
+      "dependencies": {
+        "locate-path": "^5.0.0",
+        "path-exists": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/pkg-dir/node_modules/locate-path": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
+      "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+      "dev": true,
+      "dependencies": {
+        "p-locate": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/pkg-dir/node_modules/p-limit": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+      "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+      "dev": true,
+      "dependencies": {
+        "p-try": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/pkg-dir/node_modules/p-locate": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
+      "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+      "dev": true,
+      "dependencies": {
+        "p-limit": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/platform": {
       "version": "1.3.6",
       "resolved": "https://registry.npmjs.org/platform/-/platform-1.3.6.tgz",
@@ -5835,6 +5900,92 @@
         "fsevents": "~2.3.2"
       }
     },
+    "node_modules/rollup-plugin-typescript2": {
+      "version": "0.36.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-typescript2/-/rollup-plugin-typescript2-0.36.0.tgz",
+      "integrity": "sha512-NB2CSQDxSe9+Oe2ahZbf+B4bh7pHwjV5L+RSYpCu7Q5ROuN94F9b6ioWwKfz3ueL3KTtmX4o2MUH2cgHDIEUsw==",
+      "dev": true,
+      "dependencies": {
+        "@rollup/pluginutils": "^4.1.2",
+        "find-cache-dir": "^3.3.2",
+        "fs-extra": "^10.0.0",
+        "semver": "^7.5.4",
+        "tslib": "^2.6.2"
+      },
+      "peerDependencies": {
+        "rollup": ">=1.26.3",
+        "typescript": ">=2.4.0"
+      }
+    },
+    "node_modules/rollup-plugin-typescript2/node_modules/@rollup/pluginutils": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-4.2.1.tgz",
+      "integrity": "sha512-iKnFXr7NkdZAIHiIWE+BX5ULi/ucVFYWD6TbAV+rZctiRTY2PL6tsIKhoIOaoskiWAkgu+VsbXgUVDNLHf+InQ==",
+      "dev": true,
+      "dependencies": {
+        "estree-walker": "^2.0.1",
+        "picomatch": "^2.2.2"
+      },
+      "engines": {
+        "node": ">= 8.0.0"
+      }
+    },
+    "node_modules/rollup-plugin-typescript2/node_modules/find-cache-dir": {
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-3.3.2.tgz",
+      "integrity": "sha512-wXZV5emFEjrridIgED11OoUKLxiYjAcqot/NJdAkOhlJ+vGzwhOAfcG5OX1jP+S0PcjEn8bdMJv+g2jwQ3Onig==",
+      "dev": true,
+      "dependencies": {
+        "commondir": "^1.0.1",
+        "make-dir": "^3.0.2",
+        "pkg-dir": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/avajs/find-cache-dir?sponsor=1"
+      }
+    },
+    "node_modules/rollup-plugin-typescript2/node_modules/make-dir": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
+      "integrity": "sha512-g3FeP20LNwhALb/6Cz6Dd4F2ngze0jz7tbzrD2wAV+o9FeNHe4rL+yK2md0J/fiSf1sa1ADhXqi5+oVwOM/eGw==",
+      "dev": true,
+      "dependencies": {
+        "semver": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/rollup-plugin-typescript2/node_modules/make-dir/node_modules/semver": {
+      "version": "6.3.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",
+      "integrity": "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==",
+      "dev": true,
+      "bin": {
+        "semver": "bin/semver.js"
+      }
+    },
+    "node_modules/rollup-plugin-typescript2/node_modules/semver": {
+      "version": "7.5.4",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
+      "integrity": "sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==",
+      "dev": true,
+      "dependencies": {
+        "lru-cache": "^6.0.0"
+      },
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/run-parallel": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.2.0.tgz",
@@ -6439,6 +6590,12 @@
         "strip-bom": "^3.0.0"
       }
     },
+    "node_modules/tslib": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
+      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==",
+      "dev": true
+    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -10869,6 +11026,54 @@
       "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
       "dev": true
     },
+    "pkg-dir": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-4.2.0.tgz",
+      "integrity": "sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==",
+      "dev": true,
+      "requires": {
+        "find-up": "^4.0.0"
+      },
+      "dependencies": {
+        "find-up": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz",
+          "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^5.0.0",
+            "path-exists": "^4.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
+          "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^4.1.0"
+          }
+        },
+        "p-limit": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+          "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
+          "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.2.0"
+          }
+        }
+      }
+    },
     "platform": {
       "version": "1.3.6",
       "resolved": "https://registry.npmjs.org/platform/-/platform-1.3.6.tgz",
@@ -11223,6 +11428,68 @@
         "fsevents": "~2.3.2"
       }
     },
+    "rollup-plugin-typescript2": {
+      "version": "0.36.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-typescript2/-/rollup-plugin-typescript2-0.36.0.tgz",
+      "integrity": "sha512-NB2CSQDxSe9+Oe2ahZbf+B4bh7pHwjV5L+RSYpCu7Q5ROuN94F9b6ioWwKfz3ueL3KTtmX4o2MUH2cgHDIEUsw==",
+      "dev": true,
+      "requires": {
+        "@rollup/pluginutils": "^4.1.2",
+        "find-cache-dir": "^3.3.2",
+        "fs-extra": "^10.0.0",
+        "semver": "^7.5.4",
+        "tslib": "^2.6.2"
+      },
+      "dependencies": {
+        "@rollup/pluginutils": {
+          "version": "4.2.1",
+          "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-4.2.1.tgz",
+          "integrity": "sha512-iKnFXr7NkdZAIHiIWE+BX5ULi/ucVFYWD6TbAV+rZctiRTY2PL6tsIKhoIOaoskiWAkgu+VsbXgUVDNLHf+InQ==",
+          "dev": true,
+          "requires": {
+            "estree-walker": "^2.0.1",
+            "picomatch": "^2.2.2"
+          }
+        },
+        "find-cache-dir": {
+          "version": "3.3.2",
+          "resolved": "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-3.3.2.tgz",
+          "integrity": "sha512-wXZV5emFEjrridIgED11OoUKLxiYjAcqot/NJdAkOhlJ+vGzwhOAfcG5OX1jP+S0PcjEn8bdMJv+g2jwQ3Onig==",
+          "dev": true,
+          "requires": {
+            "commondir": "^1.0.1",
+            "make-dir": "^3.0.2",
+            "pkg-dir": "^4.1.0"
+          }
+        },
+        "make-dir": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
+          "integrity": "sha512-g3FeP20LNwhALb/6Cz6Dd4F2ngze0jz7tbzrD2wAV+o9FeNHe4rL+yK2md0J/fiSf1sa1ADhXqi5+oVwOM/eGw==",
+          "dev": true,
+          "requires": {
+            "semver": "^6.0.0"
+          },
+          "dependencies": {
+            "semver": {
+              "version": "6.3.1",
+              "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",
+              "integrity": "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==",
+              "dev": true
+            }
+          }
+        },
+        "semver": {
+          "version": "7.5.4",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
+          "integrity": "sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==",
+          "dev": true,
+          "requires": {
+            "lru-cache": "^6.0.0"
+          }
+        }
+      }
+    },
     "run-parallel": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.2.0.tgz",
@@ -11686,6 +11953,12 @@
         "strip-bom": "^3.0.0"
       }
     },
+    "tslib": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
+      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==",
+      "dev": true
+    },
     "type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
diff --git a/package.json b/package.json
index f28f888e..6f84655f 100644
--- a/package.json
+++ b/package.json
@@ -100,6 +100,7 @@
     "mocha": "^10.2.0",
     "playwright": "^1.30.0",
     "rollup": "^3.29.4",
+    "rollup-plugin-typescript2": "^0.36.0",
     "sinon": "^15.1.0",
     "ts-node": "^10.9.1",
     "typescript": "^4.1.2",
diff --git a/rollup.config.js b/rollup.config.js
index 22a1b6c5..ae73d038 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -9,6 +9,7 @@ import commonjs from '@rollup/plugin-commonjs';
 import replace from '@rollup/plugin-replace';
 import terser from '@rollup/plugin-terser';
 import { wasm } from '@rollup/plugin-wasm';
+import typescript from 'rollup-plugin-typescript2';
 
 // ESlint does not support JSON module imports yet, see https://github.com/eslint/eslint/discussions/15305
 // import pkg from './package.json' assert { type: 'json' };
@@ -63,6 +64,7 @@ export default Object.assign([
       resolve({
         browser: true
       }),
+      typescript({ tsconfig:'./tsconfig.json' }),
       commonjs({
         ignore: nodeBuiltinModules.concat(nodeDependencies)
       }),
@@ -85,6 +87,7 @@ export default Object.assign([
     ].map(options => ({ ...options, inlineDynamicImports: true })),
     plugins: [
       resolve(),
+      typescript({ tsconfig:'./tsconfig.json' }),
       commonjs(),
       replace({
         'OpenPGP.js VERSION': `OpenPGP.js ${pkg.version}`
@@ -104,6 +107,7 @@ export default Object.assign([
       resolve({
         browser: true
       }),
+      typescript({ tsconfig:'./tsconfig.json' }),
       commonjs({
         ignore: nodeBuiltinModules.concat(nodeDependencies)
       }),
@@ -130,6 +134,7 @@ export default Object.assign([
       resolve({
         browser: true
       }),
+      typescript({ tsconfig:'./tsconfig.json' }),
       commonjs({
         ignore: nodeBuiltinModules.concat(nodeDependencies),
         requireReturnsDefault: 'preferred'
diff --git a/tsconfig.json b/tsconfig.json
index a41b561b..4a3e13cf 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,12 +1,17 @@
 {
+  "exclude": [
+    "./dist/",
+    "/node_modules"
+  ],
   "compilerOptions": {
     "strict": true,
     "target": "es2021",
     "module": "esnext",
     "moduleResolution": "node",
+    "downlevelIteration":true,
     "allowJs": true,
     "paths": {
       "openpgp": [ "." ]
-  },
+    },
   }
 }