Plaintext Encoded Substring This program cannot VGhpcyBwcm9ncmFtIGNhbm5vdA== VGhpcyBwcm9ncmFtIGNhbm5vd AThis program cannot QVRoaXMgcHJvZ3JhbSBjYW5ub3Q= RoaXMgcHJvZ3JhbSBjYW5ub3 AAThis program cannot QUFUaGlzIHByb2dyYW0gY2Fubm90 UaGlzIHByb2dyYW0gY2Fubm90 These are the wide versions of the string. To make it easier I'm splitting them each onto their own line. This program cannot VABoAGkAcwAgAHAAcgBvAGcAcgBhAG0AIABjAGEAbgBuAG8AdAA= VABoAGkAcwAgAHAAcgBvAGcAcgBhAG0AIABjAGEAbgBuAG8AdA AThis program cannot QVQAaABpAHMAIABwAHIAbwBnAHIAYQBtACAAYwBhAG4AbgBvAHQA QAaABpAHMAIABwAHIAbwBnAHIAYQBtACAAYwBhAG4AbgBvAHQA AAThis program cannot QUFUAGgAaQBzACAAcAByAG8AZwByAGEAbQAgAGMAYQBuAG4AbwB0AA== UAGgAaQBzACAAcAByAG8AZwByAGEAbQAgAGMAYQBuAG4AbwB0A These are the ascii strings converted to base64wide VGhpcyBwcm9ncmFtIGNhbm5vdA== QVRoaXMgcHJvZ3JhbSBjYW5ub3Q= QUFUaGlzIHByb2dyYW0gY2Fubm90 These are the wide strings converted to base64wide VABoAGkAcwAgAHAAcgBvAGcAcgBhAG0AIABjAGEAbgBuAG8AdAA= QVQAaABpAHMAIABwAHIAbwBnAHIAYQBtACAAYwBhAG4AbgBvAHQA QUFUAGgAaQBzACAAcAByAG8AZwByAGEAbQAgAGMAYQBuAG4AbwB0AA== Encoded with a custom alphabet (still using = for padding): !@#$%^&*(){}[].,|ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstu E&QYLh@fLVsWLV^c(&]QKVoeM!== |EAXJG[PL*)eIm)QKB@SHFodKm|= |D^DJ&Ui(*@hKlMhHFjPHl^dKVsj Encoded single byte (a) base64, second encoding is skipped YQ== AGE= AABh Encoded single byte (a) base64, second encoding is skipped YQ== AGE= AABh