I didn't want to get into details, but in general: no, photographing a person in public without consent is not allowed in Germany. It's called "Recht am eigenen

I didn't want to get into details, but in general: no, photographing a person in public without consent is not allowed in Germany. It's called "Recht am eigenen Bild" = rights for my own picture. Now there are many exceptions of course: crowds, prominent people, journalism, etc. Also, if someone looks into your camera and smiles, this is considered a consent. All this is about taking a picture, publishing is a separate matter.