Given that Google has been DMCA'ing repositories containing their private decryption key for Widevine, I decided to post their private key below:
-----BEGIN PRIVATE KEY----- MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC10dxEGINZbF0nIoMtM8705Nqm6ZWdb72DqTdFJ+UzQIRIUS59lQkYLvdQp71767vz0dVlPTikHmiv dYHRc7Fo6JsmSUsGR3th+fU6d1Wt6cwpMTUXj/qODmubDK/ioVDW7wz9OFlSsCBvylOYp9v2+u/VXwACnBXNxCDezjx4RKcqMFT31WTxqU9OM9J86ChMOW4bFA41aLAJ ozB+02xis7OV175XdQ5vkVXM9ys6ZoRF/K6NXeHiwcZFtMKyphXAxqU7uGY2a16bC3TEG5/km6Jru3Wxy4nKlDyUjWISwH4llWjdSi99r2c1fSCXlMCrW0CHoznn+22l YCKtYe8JAgMBAAECggEAGOPDJvFCHd43PFG9qlTyylR/2CSWzigLRfhGsClfd24oDaxLVHav+YcIZRqpVkr1flGlyEeittjQ1OAdptoTGbzp7EpRQmlLqyRoHRpT+MxO Hf91+KVFk+fGdEG+3CPgKKQt34Y0uByTPCpy2i10b7F3Xnq0Sicq1vG33DhYT9A/DRIjYr8Y0AVovq0VDjWqA1FW5OO9p7vky6e+PDMjSHucQ+uaLzVZSc7vWOh0tH5M 0GVk17YpBiB/iTpw4zBUIcaneQX3eaIfSCDHK0SCD6IRF7kl+uORzvWqiWlGzpdG2B96uyP4hd3WoPcZntM79PKm4dAotdgmalbueFJfpwKBgQDUy0EyA9Fq0aPF4LID HqDPduIm4hEAZf6sQLd8Fe6ywM4p9KOEVx7YPaFxQHFSgIiWXswildPJl8Cg5cM2EyMU1tdn5xaR4VIDk8e2JEDfhPtaWskpJp2rU2wHvAXOeAES7UFMrkhKVqqVOdbo IhlLdcYp5KxiJ3mwINSSO94ShwKBgQDavJvF+c8AINfCaMocUX0knXz+xCwdP430GoPQCHa1rUj5bZ3qn3XMwSWa57J4x3pVhYmgJv4jpEK+LBULFezNLV5N4C7vH63a Zo4OF7IUedFBS5B508yAq7RiPhN2VOC8LRdDh5oqnFufjafF82y9d+/czCrVIG43D+KO2j4F7wKBgDg/HZWF0tYEYeDNGuCeOO19xBt5B/tt+lo3pQhkl7qiIhyO8KXr jVilOcZAvXOMTA5LMnQ13ExeE2m0MdxaRJyeiUOKnrmisFYHuvNXM9qhQPtKIgABmA2QOG728SX5LHd/RRJqwur7a42UQ00Krlr235F1Q2eSfaTjmKyqrHGDAoGAOTrd 2ueoZFUzfnciYlRj1L+r45B6JlDpmDOTx0tfm9sx26j1h1yfWqoyZ5w1kupGNLgSsSdimPqyR8WK3/KlmW1EXkXIoeH8/8aTZlaGzlqtCFN4ApgKyqOiN44cU3qTrkhx 7MY+7OUqB83tVpqBGfWWeYOltUud6qQqV8v8LFsCgYEAnOq+Ls83CaHIWCjpVfiWC+R7mqW+ql1OGtoaajtA4AzhXzX8HIXpYjupPBlXlQ1FFfPem6jwa1UTZf8CpIb8 pPULAN9ZRrxG8V+bvkZWVREPTZj7xPCwPaZHNKoAmi3Dbv7S5SEYDbBX/NyPCLE4sj/AgTPbUsUtaiw5TvrPsFE= -----END PRIVATE KEY-----See repository located here: https://archive.softwareheritage.org/browse/origin/content/?origin_url=https://github.com/tomer8007/widevine-l3-decryptor&path=content_key_decryption.js